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A read from a range hidden from the user (ex. MSI-X vector table)
attempts to fill the user buffer up to the end of the excluded range
instead of up to the requested count. Fix it.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing regression fixes from Steven Rostedt:
"The clean up patch commit 0fb9656d957d "tracing: Make tracing_enabled
be equal to tracing_on" caused two regressions.
1) The irqs off latency tracer no longer starts if tracing_on is off
when the tracer is set, and then tracing_on is enabled. The
tracing_on file needs the hook that tracing_enabled had to enable
tracers if they request it (call the tracer's start() method).
2) That commit had a separate change that really should have been a
separate patch, but it must have been added accidently with the -a
option of git commit. But as the change is still related to the
commit it wasn't noticed in review. That change, changed the way
blocking is done by the trace_pipe file with respect to the
tracing_on settings. I've been told that this change breaks
current userspace, and this specific change is being reverted."
* tag 'trace-3.8-rc3-regression-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix regression of trace_pipe
tracing: Fix regression with irqsoff tracer and tracing_on file
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap debugfs optimisation fixes from Mark Brown:
"The debugfs optimisations merged in v3.8 weren't my finest hour, there
were a number of cases that the more complex algorithm made worse
especially around the error handling. This patch series should
address those issues."
* tag 'regmap-debugfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: debugfs: Make sure we store the last entry in the offset cache
regmap: debugfs: Ensure a correct return value for empty caches
regmap: debugfs: Discard the cache if we fail to allocate an entry
regmap: debugfs: Fix check for block start in cached seeks
regmap: debugfs: Fix attempts to read nonexistant register blocks
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few fixes for the regulator subsystems, a few driver specific things
plus a fix for the interaction between regultor_can_change_voltage()
and continuous voltage ranges both of which were added for this
release."
* tag 'regulator-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel
regulator: max8998: Use uV in voltage_map_desc
regulator: max8997: Use uV in voltage_map_desc
regulator: core: Fix comment for regulator_register()
regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage
regulator: s5m8767: Fix probe failure due to stack corruption
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Pull devicetree fixes from Rob Herring:
"Two fixes to prevent unconditional re-compile of dts files on arm and
arm64."
* tag 'dt-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux:
ARM: dts: prevent *.dtb from always being rebuilt
arm64: dts: prevent *.dtb from always being rebuilt
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Andrew Morton pointed this out a month ago, and then I completely forgot
about it.
If we read a partial last page of a block device, we will zero out the
end of the page, but since that page can then be mapped into user space,
we should also make sure to flush the cache on architectures that have
virtual caches. We have the flush_dcache_page() function for this, so
use it.
Now, in practice this really never matters, because nobody sane uses
virtual caches to begin with, and they largely exist on old broken RISC
arhitectures.
And even if you did run on one of those obsolete CPU's, the whole "mmap
and access the last partial page of a block device" behavior probably
doesn't actually exist. The normal IO functions (read/write) will never
see the zeroed-out part of the page that migth not be coherent in the
cache, because they honor the size of the device.
So I'm marking this for stable (3.7 only), but I'm not sure anybody will
ever care.
Pointed-out-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org # 3.7
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Most of commits found here are for ASoC device specific fixes,
arizona, cs4271, wm5102, wm2200, etc, in addition to a couple of
memory leak fixes in ASoC core.
Other than that, regression fixes in HD-audio and USB-audio, and a fix
for new Realtek codecs."
* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits)
ALSA: usb-audio: Fix NULL dereference by access to non-existing substream
ALSA: hda - Add support of new codec ALC284
ALSA: usb-audio: Make ebox44_table static
ALSA: hdspm - Fix wordclock status on AES32
Revert "ALSA: hda - Shut up pins at power-saving mode with Conexnat codecs"
ALSA: hda - Disable runtime D3 for Intel CPT & co
ALSA: pxa27x: fix ac97 warm reset
ALSA: pxa27x: fix ac97 cold reset
ASoC: wm_adsp: Ensure that block writes are from DMA aligned addresses
ASoC: wm2000: Fix sense of speech clarity enable
ASoC: wm5100: Remove DSP B and left justified formats
ASoC: arizona: Remove DSP B and left justified AIF modes
ASoC: wm2200: Remove DSP B and left justified AIF modes
ASoC: wm5102: Improve speaker enable performance
ASoC: core: fix the memory leak in case of remove_aux_dev()
ASoC: core: fix the memory leak in case of device_add() failure
ASoC: cs42l52: Catch no-match case in cs42l52_get_clk
ASoC: lm49453: Update lm49453_reg_defs values as per LM49453 HW revision-B
ASoC: lm49453: Fix adc, mic and sidetone volume ranges
ASoC: arizona: Correct FLL source definitions
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Commit 0fb9656d "tracing: Make tracing_enabled be equal to tracing_on"
changes the behaviour of trace_pipe, ie. it makes trace_pipe return if
we've read something and tracing is enabled, and this means that we have
to 'cat trace_pipe' again and again while running tests.
IMO the right way is if tracing is enabled, we always block and wait for
ring buffer, or we may lose what we want since ring buffer's size is limited.
Link: http://lkml.kernel.org/r/1358132051-5410-1-git-send-email-bo.li.liu@oracle.com
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg Kroah-Hartman:
"Here are a number of small fixes to staging drivers for your 3.8-rc3
tree.
Well, the omapdrm fixes aren't really "small" but they were waiting on
a number of other drm patches to go in through the drm tree, and got
delayed by my vacation over the holidays. They are totally
self-contained, everyone involved have acked them, and they fix issues
that people have been having with the driver.
Other than that one, it's a bunch of tiny bugfixes for a number of
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (36 commits)
staging: zram: fix invalid memory references during disk write
staging: tidspbridge: use prepare/unprepare on dsp clocks
staging: tidspbridge: Fix build breakage due to splitting CM functions.
staging: comedi: comedi_test: fix race when cancelling command
staging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC
staging: comedi: prevent auto-unconfig of manually configured devices
staging: comedi: fix minimum AO period for NI 625x and NI 628x
staging: vme_pio2: fix oops on module unloading
staging: speakup: avoid out-of-range access in synth_add()
staging: speakup: avoid out-of-range access in synth_init()
staging: rtl8192e: Fix failure to check pci_map_single()
staging: rtl8187se: Fix failure to check pci_map_single()
staging: drm/imx: fix double free bug in error path
staging: drm/imx: several bug fixes
staging: drm/imx: check return value of ipu_reset()
staging: drm/omap: fix flags in dma buf exporting
staging: drm/omap: use omapdss low level API
staging/fwserial: Update TODO file per reviewer comments
staging/fwserial: Limit tx/rx to 1394-2008 spec maximum
staging/fwserial: Refine Kconfig help text
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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 bunch of USB fixes for your 3.8-rc3 tree. They all either
fix problems that have been reported (like the xhci/hub changes) or
add new device ids to existing drivers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (39 commits)
usb: ftdi_sio: Crucible Technologies COMET Caller ID - pid added
usb: host: ohci-tmio: fix compile warning
USB: Add device quirk for Microsoft VX700 webcam
USB: ehci-fsl: fix regression on mpc5121e
usb: chipidea: Allow disabling streaming not only in udc mode
USB: fsl-mph-dr-of: fix regression on mpc5121e
USB: select USB_ARCH_HAS_EHCI for MXS
USB: hub: handle claim of enabled remote wakeup after reset
USB: cdc-acm: Add support for "PSC Scanning, Magellan 800i"
USB: option: add Nexpring NP10T terminal id
USB: option: add Telekom Speedstick LTE II
USB: option: blacklist network interface on ZTE MF880
usb: imx21-hcd: Include missing linux/module.h
USB: option: Add new MEDIATEK PID support
USB: ehci: make debug port in-use detection functional again
USB: usbtest: fix test number in log message
xhci: Avoid "dead ports", add roothub port polling.
USB: Handle warm reset failure on empty port.
USB: Ignore port state until reset completes.
USB: Increase reset timeout.
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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 two patches for 3.8-rc3.
One removes the __dev* defines from init.h now that all usages of it
are gone from your tree. The other fix is for debugfs's paramater
that was using the wrong base for the option.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
debugfs: convert gid= argument from decimal, not octal
Remove __dev* markings from init.h
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fix from Greg Kroah-Hartman:
"Here is a single fix for the mei driver that resolves a reported
issue.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'char-misc-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: fix mismatch in mutex unlock-lock in mei_amthif_read()
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Pull drm fixes from Dave Airlie:
"Nothing too astounding
- nouveau: bunch of regression fixes and oops fixes
- radeon: UMS fixes, rn50 fix, dma fix
- udl: fix EDID retrieval for large EDIDs."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
udldrmfb: udl_get_edid: drop unneeded i--
udldrmfb: udl_get_edid: usb_control_msg buffer must not be on the stack
udldrmfb: Fix EDID not working with monitors with EDID extension blocks
drm/nvc0/fb: fix crash when different mutex is used to protect same list
drm/nouveau/clock: fix support for more than 2 monitors on nve0
drm/nv50/disp: fix selection of bios script for analog outputs
drm/nv17-50: restore fence buffer on resume
drm/nouveau: fix blank LVDS screen regression on pre-nv50 cards
drm/nouveau: fix nouveau_client allocation failure path
drm/nouveau: don't return freed object from nouveau_handle_create
drm/nouveau/vm: fix memory corruption when pgt allocation fails
drm/nouveau: add locking around instobj list operations
drm/nouveau: do not forcibly power on lvds panels
drm/nouveau/devinit: ensure legacy vga control is enabled during post
radeon/kms: fix dma relocation checking
radeon/kms: force rn50 chip to always report connected on analog output
drm/radeon: fix error path in kpage allocation
drm/radeon: fix a bogus kfree
drm/radeon: fix NULL pointer dereference in UMS mode
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Pull networking fixes from David Miller:
1) Fix regression allowing IP_TTL setting of zero, fix from Cong Wang.
2) Fix leak regressions in tunap, from Jason Wang.
3) be2net driver always returns IRQ_HANDLED in INTx handler, fix from
Sathya Perla.
4) qlge doesn't really support NETIF_F_TSO6, don't set that flag. Fix
from Amerigo Wang.
5) Add 802.11ad Atheros wil6210 driver, from Vladimir Kondratiev.
6) Fix MTU calculations in mac80211 layer, from T Krishna Chaitanya.
7) Station info layer of mac80211 needs to use del_timer_sync(), from
Johannes Berg.
8) tcp_read_sock() can loop forever, because we don't immediately stop
when recv_actor() returns zero. Fix from Eric Dumazet.
9) Fix WARN_ON() in tcp_cleanup_rbuf(). We have to use sk_eat_skb() in
tcp_recv_skb() to handle the case where a large GRO packet is split
up while it is use by a splice() operation. Fix also from Eric
Dumazet.
10) addrconf_get_prefix_route() in ipv6 tests flags incorrectly, it
does:
if (X && (p->flags & Y) != 0)
when it really meant to go:
if (X && (p->flags & X) != 0)
fix from Romain Kuntz.
11) Fix lost Kconfig dependency for bfin_mac driver hardware
timestamping. From Lars-Peter Clausen.
12) Fix regression in handling of RST without ACK in TCP, from Eric
Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
be2net: fix unconditionally returning IRQ_HANDLED in INTx
tuntap: fix leaking reference count
tuntap: forbid calling TUNSETIFF when detached
tuntap: switch to use rtnl_dereference()
net, wireless: overwrite default_ethtool_ops
qlge: remove NETIF_F_TSO6 flag
tcp: accept RST without ACK flag
net: ethernet: xilinx: Do not use NO_IRQ in axienet
net: ethernet: xilinx: Do not use axienet on PPC
bnx2x: Allow management traffic after boot from SAN
bnx2x: Fix fastpath structures when memory allocation fails
bfin_mac: Restore hardware time-stamping dependency on BF518
tun: avoid owner checks on IFF_ATTACH_QUEUE
bnx2x: move debugging code before the return
tuntap: refuse to re-attach to different tun_struct
ipv6: use addrconf_get_prefix_route for prefix route lookup [v2]
ipv6: fix the noflags test in addrconf_get_prefix_route
tcp: fix splice() and tcp collapsing interaction
tcp: splice: fix an infinite loop in tcp_read_sock()
net: prevent setting ttl=0 via IP_TTL
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Pull sparc updates from David Miller:
1) Add finit_module syscall entry.
2) Remove stray __dev{init,exit} references, from Sam Ravnborg.
Fix up conflicts in the sparc PCI code due to whitespace differences in
the __dev{init,exit} removal (which also came in through Greg).
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: remove __devinit, __devexit annotations
sparc: Hook up finit_module syscall.
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if_changed (used by the *.dts->*.dtc rule) rebuilds files if they aren't
contained in $(targets). (make V=2 indicates this). Add $(dtb-y) to
$(targets) to prevent *.dtb from always being rebuilt.
This fixes a regression introduced by the .dtb rule rework in 499cd82
"ARM: dt: change .dtb build rules to build in dts directory".
Reported-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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if_changed (used by the *.dts->*.dtc rule) rebuilds files if they aren't
contained in $(targets). (make V=2 indicates this). Add $(dtb-y) to
$(targets) to prevent *.dtb from always being rebuilt. Note
This fixes a regression introduced by the .dtb rule rework in da4cbc6
"arm64: use new common dtc rule", although since arm64 doesn't actually
have any *.dts yet, this isn't a critical issue.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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Fixes a bug introduced by commit c8f2f0db1 ("zram: Fix handling
of incompressible pages") which caused invalid memory references
during disk write. Invalid references could occur in two cases:
- Incoming data expands on compression: In this case, reference was
made to kunmap()'ed bio page.
- Partial (non PAGE_SIZE) write with incompressible data: In this
case, reference was made to a kfree()'ed buffer.
Fixes bug 50081:
https://bugzilla.kernel.org/show_bug.cgi?id=50081
Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Cc: stable <stable@vger.kernel.org>
Reported-by: Mihail Kasadjikov <hamer.mk@gmail.com>
Reported-by: Tomas M <tomas@slax.org>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is a left-over from when udl_get_edid returned the amount of bytes
successfully read, which it no longer does.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The buffer passed to usb_control_msg may end up in scatter-gather list, and
may thus not be on the stack. Having it on the stack usually works on x86, but
not on other archs.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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udldrmfb only reads the main EDID block, and if that advertises extensions
the drm_edid code expects them to be present, and starts reading beyond the
buffer udldrmfb passes it.
Although it may be possible to read more EDID info with the udl we simpy don't
know how, and even if trial and error gets it working on one device, that is
no guarantee it will work on other revisions. So this patch does a simple fix
in the form of patching the EDID info to report 0 extension blocks, this
fixes udldrmfb only doing 1024x768 on monitors with EDID extension blocks.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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into drm-next
Fixes for UMS mode which has been broken for a while plus an rn50 fix
and a dma fix.
* 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux:
radeon/kms: fix dma relocation checking
radeon/kms: force rn50 chip to always report connected on analog output
drm/radeon: fix error path in kpage allocation
drm/radeon: fix a bogus kfree
drm/radeon: fix NULL pointer dereference in UMS mode
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git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next
Regression fixes since rework mostly.
* 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nvc0/fb: fix crash when different mutex is used to protect same list
drm/nouveau/clock: fix support for more than 2 monitors on nve0
drm/nv50/disp: fix selection of bios script for analog outputs
drm/nv17-50: restore fence buffer on resume
drm/nouveau: fix blank LVDS screen regression on pre-nv50 cards
drm/nouveau: fix nouveau_client allocation failure path
drm/nouveau: don't return freed object from nouveau_handle_create
drm/nouveau/vm: fix memory corruption when pgt allocation fails
drm/nouveau: add locking around instobj list operations
drm/nouveau: do not forcibly power on lvds panels
drm/nouveau/devinit: ensure legacy vga control is enabled during post
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Simple fix to add support for Crucible Technologies COMET Caller ID
USB decoder - a device containing FTDI USB/Serial converter chip,
handling 1200bps CallerID messages decoded from the phone line -
adding correct USB PID is sufficient.
Tested to apply cleanly and work flawlessly against 3.6.9, 3.7.0-rc8
and 3.8.0-rc3 on both amd64 and x86 arches.
Signed-off-by: Tomasz Mloduchowski <q@qdot.me>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes regression introduced in commit 861d2107
"drm/nouveau/fb: merge fb/vram and port to subdev interfaces"
nv50_fb_vram_{new,del} functions were changed to use
nouveau_subdev->mutex instead of the old nouveau_mm->mutex.
nvc0_fb_vram_new still uses the nouveau_mm->mutex, but nvc0 doesn't
have its own fb_vram_del function, using nv50_fb_vram_del instead.
Because of this, on nvc0 a different mutex ends up being used to protect
additions and deletions to the same list.
This patch is a -stable candidate for 3.7.
Signed-off-by: Aleksi Torhamo <aleksi@torhamo.net>
Reported-by: Roy Spliet <r.spliet@student.tudelft.nl>
Tested-by: Roy Spliet <r.spliet@student.tudelft.nl>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
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Fixes regression introduced in commit 70790f4f
"drm/nouveau/clock: pull in the implementation from all over the place"
When code was moved from nv50_crtc_set_clock to nvc0_clock_pll_set,
the PLLs it is used for got limited to only the first two VPLLs.
nv50_crtc_set_clock was only called to change VPLLs, so it didn't
limit what it was used for in any way. Since nvc0_clock_pll_set is
used for all PLLs, it has to specify which PLLs the code is used for,
and only listed the first two VPLLs.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=58735
This patch is a -stable candidate for 3.7.
Signed-off-by: Aleksi Torhamo <aleksi@torhamo.net>
Tested-by: Aleksi Torhamo <aleksi@torhamo.net>
Tested-by: Sean Santos <quantheory@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
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Analog output number was overwritten by value from digital output path.
Fix it.
Fixes resume from s2ram: https://bugs.freedesktop.org/show_bug.cgi?id=58729
(as stumbled on by J Binder, Pontus Fuchs and me)
Fixes blank screen on module load (reported by Sune Mølgaard).
Fixes regression from commit 186ecad21c854385823a430b1402053ae7fd59dc
("drm/nv50/disp: move remaining interrupt handling into core").
Reported-by: J Binder <wheel@herr-der-mails.de>
Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Reported-by: Sune Mølgaard <sune@molgaard.org>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Tested-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Tested-by: Sune Mølgaard <sune@molgaard.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Since commit 5e120f6e4b3f35b741c5445dfc755f50128c3c44 "drm/nouveau/fence:
convert to exec engine, and improve channel sync" nouveau fence sync
implementation for nv17-50 and nvc0+ started to rely on state of fence buffer
left by previous sync operation. But as pinned bo's (where fence state is
stored) are not saved+restored across suspend/resume, we need to do it
manually.
nvc0+ was fixed by commit d6ba6d215a538a58f0f0026f0961b0b9125e8042
"drm/nvc0/fence: restore pre-suspend fence buffer context on resume".
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=50121
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
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Commit 2a44e499 ("drm/nouveau/disp: introduce proper init/fini, separate
from create/destroy") started to call display init routines on pre-nv50
hardware on module load. But LVDS init code sets driver state in a way
which prevents modesetting code from operating properly.
nv04_display_init calls nv04_dfp_restore, which sets encoder->last_dpms to
NV_DPMS_CLEARED.
drm_crtc_helper_set_mode
nv04_dfp_prepare
nv04_lvds_dpms(DRM_MODE_DPMS_OFF)
nv04_lvds_dpms checks last_dpms mode (which is NV_DPMS_CLEARED) and wrongly
assumes it's a "powersaving mode", the new one (DRM_MODE_DPMS_OFF) is too,
so it skips calling some crucial lvds scripts.
Reported-by: Chris Paulson-Ellis <chris@edesix.com>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
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Depending on the point of failure, freed object would be returned
or memory leak would happen.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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If we return freed vm, nouveau_drm_open will happily call nouveau_cli_destroy,
which will try to free it again.
Reported-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Fixes memory corruptions, oopses, etc. when multiple gpuobjs are
simultaneously created or destroyed.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
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This fix was put in place to fix a bug where the eDP panel on certain
laptops fails to respond over the aux channel after suspend.
It appears that on some systems (Dell M6600, with LVDS panel) there's a
very bad interaction with the eDP init table that causes the SOR to get
very confused and not drive the panel correctly, leading to bleed.
A DPMS off/on cycle is enough to bring it back, but, this will avoid the
problem by not touching the panel GPIOs at times we're not meant to.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Fixes ACPI backlight control after suspend on some systems.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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commit e49cc34f introduced an unconditional IRQ_HANDLED return in be_intx()
to workaround Lancer and BE2 HW issues. This is bad as it prevents the kernel
from detecting interrupt storms due to broken HW.
The BE2/Lancer HW issues are:
1) In Lancer, there is no means for the driver to detect if the interrupt
belonged to device, other than counting and notifying events.
2) In Lancer de-asserting INTx takes a while, causing the INTx irq handler
to be called multiple times till the de-assert happens.
3) In BE2, we see an occasional interrupt even when EQs are unarmed.
Issue (1) can cause the notified events to be orphaned, if NAPI was already
running.
This patch fixes this issue by scheduling NAPI only if it is not scheduled
already. Doing this also takes care of possible events_get() race that may be
caused due to issue (2) and (3). Also, IRQ_HANDLED is returned only the first
time zero events are detected.
(Thanks Ben H. for the feedback and suggestions.)
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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__devinit, __devexit annotations are nops - so drop them.
Likewise for __devexit_p.
Adjusted alignment of arguments when needed.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reference count leaking of both module and sock were found:
- When a detached file were closed, its sock refcnt from device were not
released, solving this by add the sock_put().
- The module were hold or drop unconditionally in TUNSETPERSIST, which means we
if we set the persist flag for N times, we need unset it for another N
times. Solving this by only hold or drop an reference when there's a flag
change and also drop the reference count when the persist device is deleted.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael points out that even after Stefan's fix the TUNSETIFF is still allowed
to create a new tap device. This because we only check tfile->tun but the
tfile->detached were introduced. Fix this by failing early in tun_set_iff() if
the file is detached. After this fix, there's no need to do the check again in
tun_set_iff(), so this patch removes it.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Switch to use rtnl_dereference() instead of the open code, suggested by Eric.
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix the following compile warning:
In file included from drivers/usb/host/ohci-hcd.c:1170:0:
drivers/usb/host/ohci-tmio.c: In function 'tmio_start_hc':
drivers/usb/host/ohci-tmio.c:130:2: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' [-Wformat]
seen on ARM 32-bit builds.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add device quirk for Microsoft Lifecam VX700 v2.0 webcams.
Fixes squeaking noise of the microphone.
Signed-off-by: Andreas Fleig <andreasfleig@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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mpc5121e doesn't have system interface registers, accessing this
register address space cause the machine check exception and a
kernel crash:
...
Machine check in kernel mode.
Caused by (from SRR1=49030): Transfer error ack signal
Oops: Machine check, sig: 7 [#1]
MPC5121 ADS
Modules linked in:
NIP: c025fd60 LR: c0265bb4 CTR: 00000000
REGS: df82dac0 TRAP: 0200 Not tainted
(3.7.0-rc7-00641-g81e6c91)
MSR: 00049030 <EE,ME,IR,DR> CR: 42002024 XER: 20000000
TASK = df824b70[1] 'swapper' THREAD: df82c000
GPR00: 00000000 df82db70 df824b70 df3ed0f0 00000003 00000000 00000000 00000000
GPR08: 00000020 32000000 c03550ec 20000000 22002028 00000000 c0003f5c 00000000
GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 c0423898 c0450000
GPR24: 00000077 00000002 e5086180 1c000c00 e5086000 df33ec00 00000003 df34e000
NIP [c025fd60] ehci_fsl_setup_phy+0xd0/0x354
LR [c0265bb4] ehci_fsl_setup+0x220/0x284
...
Fix it by checking 'have_sysif_regs' flag before register access.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When running a scp transfer using a USB/Ethernet adapter the following crash
happens:
$ scp test.tar.gz fabio@192.168.1.100:/home/fabio
fabio@192.168.1.100's password:
test.tar.gz 0% 0 0.0KB/s --:-- ETA
------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x2cc/0x2f0()
NETDEV WATCHDOG: eth0 (asix): transmit queue 0 timed out
Modules linked in:
Backtrace:
[<80011c94>] (dump_backtrace+0x0/0x10c) from [<804d3a5c>] (dump_stack+0x18/0x1c)
r6:000000ff r5:80412388 r4:80685dc0 r3:80696cc0
[<804d3a44>] (dump_stack+0x0/0x1c) from [<80021868>]
(warn_slowpath_common+0x54/0x6c)
[<80021814>] (warn_slowpath_common+0x0/0x6c) from [<80021924>]
(warn_slowpath_fmt+0x38/0x40)
...
Setting SDIS (Stream Disable Mode- bit 4 of USBMODE register) fixes the problem.
However, in current code CI13XXX_DISABLE_STREAMING flag is only set in udc mode,
so allow disabling streaming also in host mode.
Tested on a mx6qsabrelite board.
Suggested-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fsl-ehci probing fails on mpc5121e:
...
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
fsl-ehci fsl-ehci.0: Could not get controller version
fsl-ehci fsl-ehci.0: can't setup
fsl-ehci fsl-ehci.0: USB bus 1 deregistered
fsl-ehci fsl-ehci.0: init fsl-ehci.0 fail, -22
fsl-ehci: probe of fsl-ehci.0 failed with error -22
Fix it by returning appropriate version info for mpc5121, too.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 09f6ffde (USB: EHCI: fix build error by making ChipIdea host a
normal EHCI driver) introduced a dependency on USB_EHCI_HCD for the
chipidea USB host driver, that in turns depends on USB_ARCH_HAS_EHCI.
If this symbol is not set for MXS, the MXS boards are not able to use
the chipidea driver anymore.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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