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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
- An OMAP fix that makes ethernet work again.
- Fix for build problem when building the MCP23S08 driver as module.
- IRQ conflicts in the Langwell driver.
- Fix IRQ coherency issues in the MXS driver.
- Return correct errorcode on errorpath when removing GPIO chips.
* tag 'gpio-fixes-v3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Don't override the error code in probe error handling
gpio: mxs: Use set and clear capabilities of the gpio controller
gpio-langwell: fix irq conflicts when DT is not used
gpio: mcp23s08: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m
gpio/omap: ensure gpio context is initialised
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Here are some more fixes for v3.10. The Moorestown update broke Intel
Medfield devices, so I reverted it. The acpiphp change fixes a
regression: we broke hotplug notifications to host bridges when we
split acpiphp into the host-bridge related part and the
endpoint-related part.
Moorestown
Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
Hotplug
PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check"
* tag 'pci-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"A few fixups to Wacom and eGalax touchscreen driver"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: wacom - add an eraser to DTH2242/DTK2241
Input: wacom - add a few new styli for Cintiq series
Input: wacom - add three new display tablets
Input: egalax_ts - ABS_MT_POSITION_Y not reported well
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg Kroah-Hartman:
"Here are some tty / serial driver fixes for 3.10-rc2.
Nothing huge, although the rocket driver fix looks large, it's just
moving the code around to fix the reported build issues in it. Other
than that, this has the fix for the of-reported lockdep warning from
the vt layer, as well as some other needed bugfixes.
All of these have been in linux-next for a while"
* tag 'tty-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: mxser: Fix build warning introduced by dfc7b837c7f9 (Re: linux-next: build warning after merge of the tty.current tree)
tty: mxser: fix usage of opmode_ioaddr
serial: 8250_dw: add ACPI ID for Intel BayTrail
TTY: Fix tty miss restart after we turn off flow-control
tty/vt: Fix vc_deallocate() lock order
TTY: ehv_bytechan: add missing platform_driver_unregister() when module exit
TTY: rocket, fix more no-PCI warnings
serial: mcf: missing uart_unregister_driver() on error in mcf_init()
tty: serial: mpc5xxx: fix error handing in mpc52xx_uart_init()
serial: samsung: add missing platform_driver_unregister() when module exit
serial: pl011: protect attribute read from NULL platform data struct
tty: nwpserial: Pass correct pointer to free_irq()
serial: 8250_dw: Add valid clk pointer check
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg Kroah-Hartman:
"Here are some staging tree driver fixes for 3.10-rc2
The drivers/iio/ changes are here as they are still tied into
drivers/staging/iio/.
Nothing major, just a number of small bugfixes, and a larger
documentation update for the ramster code."
* tag 'staging-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (28 commits)
staging: dwc2: remove compile warning for USB_DWC2_TRACK_MISSED_SOFS
iio: exynos_adc: fix wrong structure extration in suspend and resume
iio:common:st: added disable function after read info raw data
iio: dac: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m
staging:iio:light:tsl2x7x: fix the error handling in tsl2x7x_probe()
staging/iio/mxs-lradc: fix preenable for multiple buffers
staging: imx-drm: imx-tve: Check the return value of 'regulator_enable()'
staging: video: imx: Select VIDEOMODE_HELPERS for parallel display
staging: ramster: add how-to document
staging: dwc2: Fix dma-enabled platform devices using a default dma_mask
staging: vt6656: [bug] Fix missing spin lock in iwctl_siwpower.
staging: Swap zram and zsmalloc in Kconfig
staging: android: logger: use kuid_t instead of uid_t
staging: zcache: Fix incorrect module_param_array types
staging/solo6x10: depend on CONFIG_FONTS
staging/drm: imx: add missing dependencies
staging: ste_rmi4: Suppress 'ignoring return value of ‘regulator_enable()' warning
staging: sep: fix driver build and kconfig
staging: nvec: cleanup childs on remove
staging: nvec: implement unregistering of notifiers
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg Kroah-Hartman:
"Here are 3 tiny driver core fixes for 3.10-rc2.
A needed symbol export, a change to make it easier to track down
offending sysfs files with incorrect attributes, and a klist bugfix.
All have been in linux-next for a while"
* tag 'driver-core-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
klist: del waiter from klist_remove_waiters before wakeup waitting process
driver core: print sysfs attribute name when warning about bogus permissions
driver core: export subsys_virtual_register
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg Kroah-Hartman:
"Here are some small char/misc driver fixes for 3.10-rc2.
Nothing major here, just a number of fixes for things that people have
reported, and a MAINTAINERS update for the recent changes for the
hyperv files that went into 3.10-rc1."
* tag 'char-misc-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
ttyprintk: Fix NULL pointer deref by setting tty_port ops after initializing port
uio: UIO_DMEM_GENIRQ should depend on HAS_DMA
MAINTAINERS: update Hyper-V file list
mei: bus: Reset event_cb when disabling a device
Drivers: hv: Fix a bug in get_vp_index()
mei: fix out of array access to me clients array
Char: lp, protect LPGETSTATUS with port_mutex
dummy-irq: require the user to specify an IRQ number
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a number of tiny USB bugfixes / new device ids for 3.10-rc2
The majority of these are USB gadget fixes, but they are all small.
Other than that, some USB host controller fixes, and USB serial driver
fixes for problems reported with them.
Also hopefully a fixed up USB_OTG Kconfig dependancy, that one seems
to be almost impossible to get right for all of the different
platforms these days."
* tag 'usb-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (56 commits)
USB: cxacru: potential underflow in cxacru_cm_get_array()
USB: ftdi_sio: Add support for Newport CONEX motor drivers
USB: option: add device IDs for Dell 5804 (Novatel E371) WWAN card
usb: ohci: fix goto wrong tag in err case
usb: isp1760-if: fix memleak when platform_get_resource fail
usb: ehci-s5p: fix memleak when fallback to pdata
USB: serial: clean up chars_in_buffer
USB: ti_usb_3410_5052: fix chars_in_buffer overhead
USB: io_ti: fix chars_in_buffer overhead
USB: ftdi_sio: fix chars_in_buffer overhead
USB: ftdi_sio: clean up get_modem_status
USB: serial: add generic wait_until_sent implementation
USB: serial: add wait_until_sent operation
USB: set device dma_mask without reference to global data
USB: Blacklisted Cinterion's PLxx WWAN Interface
usb: option: Add Telewell TW-LTE 4G
USB: EHCI: remove bogus #error
USB: reset resume quirk needed by a hub
USB: usb-stor: realtek_cr: Fix compile error
usb, chipidea: fix link error when USB_EHCI_HCD is a module
...
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plus send begin and end of express keys events for
Cintiq 13HD and DTH2242/DTK2241
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Pull MIPS update from Ralf Baechle:
- Fix a build error if <linux/printk.h> is included without
<linux/linkage.h> having been included before.
- Cleanup and fix the damage done by the generic idle loop patch.
- A kprobes fix that brings the MIPS code in line with what other
architectures are for quite a while already.
- Wire up the native getdents64(2) syscall for 64 bit - for some reason
it was only for the compat ABIs. This has been reported to cause an
application issue. This turned out bigger than I meant but the wait
instruction support code was driving me nuts.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: N64: Wire getdents64(2)
kprobes/mips: Fix to check double free of insn slot
MIPS: Idle: Break r4k_wait into two functions and fix it.
MIPS: Idle: Do address fiddlery in helper functions.
MIPS: Idle: Consolidate all declarations in <asm/idle.h>.
MIPS: Idle: Don't call local_irq_disable() in cpu_wait() implementations.
MIPS: Idle: Re-enable irqs at the end of r3081, au1k and loongson2 cpu_wait.
MIPS: Idle: Make call of function pointer readable.
MIPS: Idle: Consistently reformat inline assembler.
MIPS: Idle: cleaup SMTC idle hook as per Linux coding style.
MIPS: Consolidate idle loop / WAIT instruction support in a single file.
MIPS: clock.h: Remove declaration of cpu_wait.
Add include dependencies to <linux/printk.h>.
MIPS: Rewrite pfn_valid to work in modules, too.
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Remove the compile-time warning for this config option, and instead
warn that it is experimental in the Kconfig text
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The exynos_adc device structure was wrongly extracted from the dev*
correcting the same.
Using the regular conversion of
struct device* -> struct platform_device* -> struct exynos_adc* seems wrong.
Instead we should be doing
struct device* -> struct iio_dev* -> struct exynos_adc*
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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This patch fixes below build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m:
drivers/built-in.o: In function `ad5064_i2c_write':
drivers/iio/dac/ad5064.c:608: undefined reference to `i2c_master_send'
drivers/built-in.o: In function `ad5064_i2c_register_driver':
drivers/iio/dac/ad5064.c:646: undefined reference to `i2c_register_driver'
drivers/built-in.o: In function `ad5064_i2c_unregister_driver':
drivers/iio/dac/ad5064.c:651: undefined reference to `i2c_del_driver'
make: *** [vmlinux] Error 1
When CONFIG_I2C=m, meaning we can't build the drivers in with I2C support.
Thus don't allow the drivers to be compiled as built-in when CONFIG_I2C=m.
The real fix though is to break the driver apart into a SPI part, an I2C part
and a common part. But that's something for 3.11 while this is something for
3.10/stable.
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Fix to return -EINVAL in the i2c device found error handling
case instead of 0, as done elsewhere in this function.
And also correct the fail1 and fail2 lable to do the right thing.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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This fixes 'preenable failed: -EINVAL' error when using this driver.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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build warning after merge of the tty.current tree)
Fix build warning at mxser.c introduced by dfc7b837c7f9 (tty: mxser: fix
usage of opmode_ioaddr)
Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes
Pull mfd fixes from Samuel Ortiz:
"This is the first batch of MFD fixes for 3.10.
It's bigger than I would like, most of it is due to the big ab/db8500
merge that went through during the 3.10 merge window.
So we have:
- Some build fixes for the tps65912 and ab8500 drivers.
- A couple of build fixes for the the si476x driver with pre 4.3 gcc
compilers.
- A few runtime breakage fixes (probe failures or oopses) for the
ab8500 and db8500 drivers.
- Some sparse or regular gcc warning fixes for the si476x, ab8500 and
cros_ec drivers."
* tag 'mfd-fixes-3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
mfd: ab8500-sysctrl: Let sysctrl driver work without pdata
mfd: db8500-prcmu: Update stored DSI PLL divider value
mfd: ab8500-sysctrl: Always enable pm_power_off handler
mfd: ab8500-core: Pass GPADC compatible string to MFD core
mfd: db8500-prcmu: Supply the pdata_size attribute for db8500-thermal
mfd: ab8500-core: Use the correct driver name when enabling gpio/pinctrl
mfd: ab8500: Pass AB8500 IRQ to debugfs code by resource
mfd: ab8500-gpadc: Suppress 'ignoring regulator_enable() return value' warning
mfd: ab8500-sysctrl: Set sysctrl_dev during probe
mfd: ab8500-sysctrl: Fix sparse warning
mfd: abx500-core: Fix sparse warning
mfd: ab8500: Debugfs code depends on gpadc
mfd: si476x: Use get_unaligned_be16() for unaligned be16 loads
mfd: cros_ec_spi: Use %z to format pointer differences
mfd: si476x: Do not use binary constants
mfd: tps65912: Select MFD_CORE
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio fixes from Rusty Russell:
"A build fix and a uapi exposure fix. The build fix is later than I
liked, but my first version broke linux-next due to overzealous header
clean."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_console: fix uapi header
Hoist memcpy_fromiovec/memcpy_toiovec into lib/
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Without this, the
WARN_ON_ONCE(irqs_disabled());
in the idle loop will be triggered.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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A check for a valid plat->sysctrl was introduced in:
2377e52 mfd: ab8500-sysctrl: Error check clean up
but the driver works just fine even without that initialization data,
and enforcing it breaks existing platforms for no reason.
This patch removes the check and let the driver go ahead with probe.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem fix from Bryan Wu.
* 'leds-fixes-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: leds-gpio: reserve gpio before using it
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This reverts commit a99d76f (leds: leds-gpio: use gpio_request_one)
and commit 2d7c22f (leds: leds-gpio: set devm_gpio_request_one()
flags param correctly) which was a fix of the first one.
The conversion to devm_gpio_request in commit e3b1d44c (leds:
leds-gpio: use devm_gpio_request_one) is not reverted.
The problem is that gpio_cansleep() and gpio_get_value_cansleep()
calls can crash if the gpio is not first reserved. Incidentally this
same bug existed earlier and was fixed similarly in commit d95cbe61
(leds: Fix potential leds-gpio oops). But the OOPS is real. It happens
when GPIOs are provided by module which is not yet loaded.
So this fixes the following BUG during my ALIX boot (3.9.2-vanilla):
BUG: unable to handle kernel NULL pointer dereference at 0000004c
IP: [<c11287d6>] __gpio_cansleep+0xe/0x1a
*pde = 00000000
Oops: 0000 [#1] SMP
Modules linked in: leds_gpio(+) via_rhine mii cs5535_mfd mfd_core
geode_rng rng_core geode_aes isofs nls_utf8 nls_cp437 vfat fat
ata_generic pata_amd pata_cs5536 pata_acpi libata ehci_pci ehci_hcd
ohci_hcd usb_storage usbcore usb_common sd_mod scsi_mod squashfs loop
Pid: 881, comm: modprobe Not tainted 3.9.2 #1-Alpine
EIP: 0060:[<c11287d6>] EFLAGS: 00010282 CPU: 0
EIP is at __gpio_cansleep+0xe/0x1a
EAX: 00000000 EBX: cf364018 ECX: c132b8b9 EDX: 00000000
ESI: c13993a4 EDI: c1399370 EBP: cded9dbc ESP: cded9dbc
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
CR0: 8005003b CR2: 0000004c CR3: 0f0c4000 CR4: 00000090
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
Process modprobe (pid: 881, ti=cded8000 task=cf094aa0 task.ti=cded8000)
Stack:
cded9de0 d09471cb 00000000 c1399260 cf364014 00000000 c1399260 c1399254
d0949014 cded9df4 c118cd59 c1399260 d0949014 d0949014 cded9e08 c118ba47
c1399260 d0949014 c1399294 cded9e1c c118bb75 cded9e24 d0949014 00000000
Call Trace:
[<d09471cb>] gpio_led_probe+0xba/0x203 [leds_gpio]
[<c118cd59>] platform_drv_probe+0x26/0x48
[<c118ba47>] driver_probe_device+0x75/0x15c
[<c118bb75>] __driver_attach+0x47/0x63
[<c118a727>] bus_for_each_dev+0x3c/0x66
[<c118b6f9>] driver_attach+0x14/0x16
[<c118bb2e>] ? driver_probe_device+0x15c/0x15c
[<c118b3d5>] bus_add_driver+0xbd/0x1bc
[<d08b4000>] ? 0xd08b3fff
[<d08b4000>] ? 0xd08b3fff
[<c118bffc>] driver_register+0x74/0xec
[<d08b4000>] ? 0xd08b3fff
[<c118c8e8>] platform_driver_register+0x38/0x3a
[<d08b400d>] gpio_led_driver_init+0xd/0x1000 [leds_gpio]
[<c100116c>] do_one_initcall+0x6b/0x10f
[<d08b4000>] ? 0xd08b3fff
[<c105e918>] load_module+0x1631/0x1907
[<c10975d6>] ? insert_vmalloc_vmlist+0x14/0x43
[<c1098d5b>] ? __vmalloc_node_range+0x13e/0x15f
[<c105ec50>] sys_init_module+0x62/0x77
[<c1257888>] syscall_call+0x7/0xb
EIP: [<c11287d6>] __gpio_cansleep+0xe/0x1a SS:ESP 0068:cded9dbc
CR2: 000000000000004c
---[ end trace 5308fb20d2514822 ]---
Signed-off-by: Timo Teräs <timo.teras@iki.f>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Raphael Assenat <raph@8d.com>
Cc: Trent Piepho <tpiepho@freescale.com>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c bugfixes from Wolfram Sang:
"These should have been in rc2 but I missed it due to working on devm
longer than expected.
There is one ID addition, since we are touching the driver anyhow.
And the feature bit documentation is one outcome of a debug session
and will make it easier for users to work around problems. The rest
is typical driver bugfixes."
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: suppress lockdep warning on delete_device
i2c: mv64xxx: work around signals causing I2C transactions to be aborted
i2c: i801: Document feature bits in modinfo
i2c: designware: add Intel BayTrail ACPI ID
i2c: designware: always clear interrupts before enabling them
i2c: designware: fix RX FIFO overrun
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Since commit c8801a8 (regulator: core: Mark all get and enable calls as
__must_check) we need to check the value returned by 'regulator_enable()'.
Do this check to get rid of the following build warning:
drivers/staging/imx-drm/imx-tve.c: In function 'imx_tve_probe':
drivers/staging/imx-drm/imx-tve.c:671:19: warning: ignoring return value of 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Without this, I get the following problem when building kernel:
drivers/built-in.o: In function `imx_pd_connector_get_modes':
/linux-2.6/drivers/staging/imx-drm/parallel-display.c:78: undefined reference to `of_get_drm_display_mode'
make: *** [vmlinux] Error 1
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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mxser_port->opmode_ioaddr is initialized only for MOXA_MUST_MU860_HWID
chips, but no precautions have been undertaken to prevent reading and
writing to undefined port number.
Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the same controller as on Intel Lynxpoint but the
ACPI ID is different.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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port
tty_port_init() zeroes out the tty port, which means that we have to set the
ops pointer /after/, not before this call. Otherwise, tty_port_open will crash
when it tries to deref ops, which is now a NULL pointer.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If NO_DMA=y:
drivers/built-in.o: In function `uio_dmem_genirq_release':
drivers/uio/uio_dmem_genirq.c:95: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `uio_dmem_genirq_open':
drivers/uio/uio_dmem_genirq.c:61: undefined reference to `dma_alloc_coherent'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hans J. Koch <hjk@hansjkoch.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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After cancelling all reads from the disable hook, we need to reset the
event_cb pointer as well or else we won't be able to set a new one up
when re-enabling the device.
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linux' notion of cpuid is different from the Host's notion of CPUID. In the
call to bind the channel interrupts, we should use the host's notion of
CPU Ids. Fix this bug.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: Stable <stable@vger.kernel.org> (V3.9)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The patch 9f81abdac362: "mei: implement mei_cl_connect function"
from Jan 8, 2013, leads to the following static checker warning:
"drivers/misc/mei/main.c:522 mei_ioctl_connect_client()
warn: check 'dev->me_clients[]' for negative offsets (-2)"
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 update from Martin Schwidefsky:
"An additional sysfs attribute for channel paths and a couple of bux
fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pgtable: fix ipte notify bit
s390/xpram: mark xpram as non-rotational
s390/smp: fix cpu re-scan vs. cpu state
s390/cio: add channel ID sysfs attribute
s390/ftrace: fix mcount adjustment
s390: fix gmap_ipte_notifier vs. software dirty pages
s390: disable pfmf for clear page instruction
s390/disassembler: prevent endless loop in print_fn_code()
s390: remove non existent reference to GENERIC_KERNEL_THREAD
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Make it obvious to see what attribute is using bogus permissions.
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Modules want to call this function, so it needs to be exported.
Reported-by: Daniel Mack <zonque@gmail.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://people.freedesktop.org/~airlied/linux
Pull radeon sun/hainan support from Dave Airlie:
"Since I know its outside the merge window, but since this is new hw I
thought I'd try and provoke the new hw exception, it just fills in the
blanks in the driver for the new AMD sun and hainan chipsets."
* 'drm-radeon-sun-hainan' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: add Hainan pci ids
drm/radeon: add golden register settings for Hainan (v2)
drm/radeon: sun/hainan chips do not have UVD (v2)
drm/radeon: track which asics have UVD
drm/radeon: radeon-asic updates for Hainan
drm/radeon: fill in ucode loading support for Hainan
drm/radeon: don't touch DCE or VGA regs on Hainan (v3)
drm/radeon: fill in GPU init for Hainan (v2)
drm/radeon: add chip family for Hainan
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Pull DRM fixes from Dave Airlie:
"This is just a set of nouveau and radeon fixes, the nouveau ones fix
some suspend/resume regressions since use of copy engines and some
fixes for Z compression on some newer chipsets."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon/dce2: use 10khz units for audio dto calculation
drm/radeon: Fix VRAM size calculation for VRAM >= 4GB
drm/radeon: Remove superfluous variable
drm/nouveau: ensure channels are stopped before saving fences for suspend
drm/nv50/fifo: prevent races between clients updating playlists
drm/nvc0/fifo: prevent CHAN_TABLE_ERROR:CHANNEL_PENDING on fifo fini
drm/nvc0/fifo: prevent races between clients updating playlists
drm/nve0/fifo: prevent races between clients updating playlists
drm/nve0/ltcg: poke the partition count into yet another register
drm/nvc0/ltcg: fix handling of disabled partitions
drm/nvc0/ce: disable ce1 on a number of chipsets
drm/nouveau/bios: fix thinko in ZM_MASK_ADD opcode
drm/nouveau: fix build with nv50->nvc0
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
- Regression fix in xen privcmd fixing a memory leak.
- Add Documentation for tmem driver.
- Simplify and remove code in the tmem driver.
- Cleanups.
* tag 'stable/for-linus-3.10-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: Fixed assignment error in if statement
xen/xenbus: Fixed over 80 character limit issue
xen/xenbus: Fixed indentation error in switch case
xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.
xen/tmem: Remove the usage of '[no|]selfballoon' and use 'tmem.selfballooning' bool instead.
xen/tmem: Remove the usage of 'noselfshrink' and use 'tmem.selfshrink' bool instead.
xen/tmem: Remove the boot options and fold them in the tmem.X parameters.
xen/tmem: s/disable_// and change the logic.
xen/tmem: Fix compile warning.
xen/tmem: Split out the different module/boot options.
xen/tmem: Move all of the boot and module parameters to the top of the file.
xen/tmem: Cleanup. Remove the parts that say temporary.
xen/privcmd: fix condition in privcmd_close()
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I meet emacs hang in start if I do the operation below:
1: echo 3 > /proc/sys/vm/drop_caches
2: emacs BigFile
3: Press CTRL-S follow 2 immediately
Then emacs hang on, CTRL-Q can't resume, the terminal
hang on, you can do nothing with this terminal except
close it.
The reason is before emacs takeover control the tty,
we use CTRL-S to XOFF it. Then when emacs takeover the
control, it may don't use the flow-control, so emacs hang.
This patch fix it.
This patch will fix a kind of strange tty relation hang problem,
I believe I meet it with vim in ssh, and also see below bug report:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=465823
Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Now that the tty port owns the flip buffers and i/o is allowed
from the driver even when no tty is attached, the destruction
of the tty port (and the flip buffers) must ensure that no
outstanding work is pending.
Unfortunately, this creates a lock order problem with the
console_lock (see attached lockdep report [1] below).
For single console deallocation, drop the console_lock prior
to port destruction. When multiple console deallocation,
defer port destruction until the consoles have been
deallocated.
tty_port_destroy() is not required if the port has not
been used; remove from vc_allocate() failure path.
[1] lockdep report from Dave Jones <davej@redhat.com>
======================================================
[ INFO: possible circular locking dependency detected ]
3.9.0+ #16 Not tainted
-------------------------------------------------------
(agetty)/26163 is trying to acquire lock:
blocked: ((&buf->work)){+.+...}, instance: ffff88011c8b0020, at: [<ffffffff81062065>] flush_work+0x5/0x2e0
but task is already holding lock:
blocked: (console_lock){+.+.+.}, instance: ffffffff81c2fde0, at: [<ffffffff813bc201>] vt_ioctl+0xb61/0x1230
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (console_lock){+.+.+.}:
[<ffffffff810b3f74>] lock_acquire+0xa4/0x210
[<ffffffff810416c7>] console_lock+0x77/0x80
[<ffffffff813c3dcd>] con_flush_chars+0x2d/0x50
[<ffffffff813b32b2>] n_tty_receive_buf+0x122/0x14d0
[<ffffffff813b7709>] flush_to_ldisc+0x119/0x170
[<ffffffff81064381>] process_one_work+0x211/0x700
[<ffffffff8106498b>] worker_thread+0x11b/0x3a0
[<ffffffff8106ce5d>] kthread+0xed/0x100
[<ffffffff81601cac>] ret_from_fork+0x7c/0xb0
-> #0 ((&buf->work)){+.+...}:
[<ffffffff810b349a>] __lock_acquire+0x193a/0x1c00
[<ffffffff810b3f74>] lock_acquire+0xa4/0x210
[<ffffffff810620ae>] flush_work+0x4e/0x2e0
[<ffffffff81065305>] __cancel_work_timer+0x95/0x130
[<ffffffff810653b0>] cancel_work_sync+0x10/0x20
[<ffffffff813b8212>] tty_port_destroy+0x12/0x20
[<ffffffff813c65e8>] vc_deallocate+0xf8/0x110
[<ffffffff813bc20c>] vt_ioctl+0xb6c/0x1230
[<ffffffff813b01a5>] tty_ioctl+0x285/0xd50
[<ffffffff811ba825>] do_vfs_ioctl+0x305/0x530
[<ffffffff811baad1>] sys_ioctl+0x81/0xa0
[<ffffffff81601d59>] system_call_fastpath+0x16/0x1b
other info that might help us debug this:
[ 6760.076175] Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(console_lock);
lock((&buf->work));
lock(console_lock);
lock((&buf->work));
*** DEADLOCK ***
1 lock on stack by (agetty)/26163:
#0: blocked: (console_lock){+.+.+.}, instance: ffffffff81c2fde0, at: [<ffffffff813bc201>] vt_ioctl+0xb61/0x1230
stack backtrace:
Pid: 26163, comm: (agetty) Not tainted 3.9.0+ #16
Call Trace:
[<ffffffff815edb14>] print_circular_bug+0x200/0x20e
[<ffffffff810b349a>] __lock_acquire+0x193a/0x1c00
[<ffffffff8100a269>] ? sched_clock+0x9/0x10
[<ffffffff8100a269>] ? sched_clock+0x9/0x10
[<ffffffff8100a200>] ? native_sched_clock+0x20/0x80
[<ffffffff810b3f74>] lock_acquire+0xa4/0x210
[<ffffffff81062065>] ? flush_work+0x5/0x2e0
[<ffffffff810620ae>] flush_work+0x4e/0x2e0
[<ffffffff81062065>] ? flush_work+0x5/0x2e0
[<ffffffff810b15db>] ? mark_held_locks+0xbb/0x140
[<ffffffff8113c8a3>] ? __free_pages_ok.part.57+0x93/0xc0
[<ffffffff810b15db>] ? mark_held_locks+0xbb/0x140
[<ffffffff810652f2>] ? __cancel_work_timer+0x82/0x130
[<ffffffff81065305>] __cancel_work_timer+0x95/0x130
[<ffffffff810653b0>] cancel_work_sync+0x10/0x20
[<ffffffff813b8212>] tty_port_destroy+0x12/0x20
[<ffffffff813c65e8>] vc_deallocate+0xf8/0x110
[<ffffffff813bc20c>] vt_ioctl+0xb6c/0x1230
[<ffffffff810aec41>] ? lock_release_holdtime.part.30+0xa1/0x170
[<ffffffff813b01a5>] tty_ioctl+0x285/0xd50
[<ffffffff812b00f6>] ? inode_has_perm.isra.46.constprop.61+0x56/0x80
[<ffffffff811ba825>] do_vfs_ioctl+0x305/0x530
[<ffffffff812b04db>] ? selinux_file_ioctl+0x5b/0x110
[<ffffffff811baad1>] sys_ioctl+0x81/0xa0
[<ffffffff81601d59>] system_call_fastpath+0x16/0x1b
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We have registered platform driver when module init, and
need unregister it when module exit.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit "TTY: rocket, fix compilation warning" fixed a compilation
warning, but there was still a problem with !CONFIG_PCI configs. So
fix them for good by coupling the PCI functions together and moving
them inside a common #ifdef.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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Add the missing uart_unregister_driver() before return
from mcf_init() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add the missing uart_unregister_driver() and uninit before return
from mpc52xx_uart_init() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We have registered platform driver when module init, and
need unregister it when module exit.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It's completely feasible that platform data will be empty i.e. when
booting with Device Tree with no device AUXDATA. So we must protect
it's use in these use-cases, or risk a kernel Oops.
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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free_irq() expects the same pointer that was passed to request_irq(), otherwise
the IRQ is not freed.
The issue was found using the following coccinelle script:
<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)
@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)
@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit ffc3ae6dd "serial: 8250_dw: Enable runtime PM" introduced runtime
PM management, which enables/disables the clk without checking if the clk
is valid. However, this driver allows to be probed without a defined clk,
using clock-frequency, as a fallback.
Therefore, on platforms that are device tree probed using clock-frequency
instead of clk, we get an ugly NULL pointer dereference.
This patch fixes it by simply adding a check before accessing the clk api.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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