summaryrefslogtreecommitdiff
path: root/drivers/char
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/Kconfig2
-rw-r--r--drivers/char/efirtc.c1
-rw-r--r--drivers/char/hvc_iucv.c2
-rw-r--r--drivers/char/ipmi/ipmi_kcs_sm.c2
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c118
-rw-r--r--drivers/char/keyboard.c10
-rw-r--r--drivers/char/mem.c161
-rw-r--r--drivers/char/misc.c26
-rw-r--r--drivers/char/nozomi.c48
-rw-r--r--drivers/char/nvram.c14
-rw-r--r--drivers/char/nwflash.c1
-rw-r--r--drivers/char/random.c10
-rw-r--r--drivers/char/sonypi.c49
-rw-r--r--drivers/char/sysrq.c2
-rw-r--r--drivers/char/vt.c50
15 files changed, 307 insertions, 189 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 6f31c9472100..31be3ac2e21b 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -502,7 +502,7 @@ config BRIQ_PANEL
config BFIN_OTP
tristate "Blackfin On-Chip OTP Memory Support"
- depends on BLACKFIN && (BF52x || BF54x)
+ depends on BLACKFIN && (BF51x || BF52x || BF54x)
default y
help
If you say Y here, you will get support for a character device
diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c
index 26a47dc88f61..53c524e7b829 100644
--- a/drivers/char/efirtc.c
+++ b/drivers/char/efirtc.c
@@ -285,6 +285,7 @@ static const struct file_operations efi_rtc_fops = {
.unlocked_ioctl = efi_rtc_ioctl,
.open = efi_rtc_open,
.release = efi_rtc_close,
+ .llseek = no_llseek,
};
static struct miscdevice efi_rtc_dev= {
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index b8a5d654d3d0..fe62bd0e17b7 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -931,7 +931,7 @@ static struct hv_ops hvc_iucv_ops = {
};
/* Suspend / resume device operations */
-static struct dev_pm_ops hvc_iucv_pm_ops = {
+static const struct dev_pm_ops hvc_iucv_pm_ops = {
.freeze = hvc_iucv_pm_freeze,
.thaw = hvc_iucv_pm_restore_thaw,
.restore = hvc_iucv_pm_restore_thaw,
diff --git a/drivers/char/ipmi/ipmi_kcs_sm.c b/drivers/char/ipmi/ipmi_kcs_sm.c
index 80704875794c..cf82fedae099 100644
--- a/drivers/char/ipmi/ipmi_kcs_sm.c
+++ b/drivers/char/ipmi/ipmi_kcs_sm.c
@@ -370,7 +370,7 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
return SI_SM_IDLE;
case KCS_START_OP:
- if (state != KCS_IDLE) {
+ if (state != KCS_IDLE_STATE) {
start_error_recovery(kcs,
"State machine not idle at start");
break;
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index d2e698096ace..679cd08b80b4 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -64,6 +64,7 @@
#include <linux/dmi.h>
#include <linux/string.h>
#include <linux/ctype.h>
+#include <linux/pnp.h>
#ifdef CONFIG_PPC_OF
#include <linux/of_device.h>
@@ -1919,7 +1920,7 @@ struct SPMITable {
s8 spmi_id[1]; /* A '\0' terminated array starts here. */
};
-static __devinit int try_init_acpi(struct SPMITable *spmi)
+static __devinit int try_init_spmi(struct SPMITable *spmi)
{
struct smi_info *info;
u8 addr_space;
@@ -1940,7 +1941,7 @@ static __devinit int try_init_acpi(struct SPMITable *spmi)
return -ENOMEM;
}
- info->addr_source = "ACPI";
+ info->addr_source = "SPMI";
/* Figure out the interface type. */
switch (spmi->InterfaceType) {
@@ -2002,7 +2003,7 @@ static __devinit int try_init_acpi(struct SPMITable *spmi)
return 0;
}
-static __devinit void acpi_find_bmc(void)
+static __devinit void spmi_find_bmc(void)
{
acpi_status status;
struct SPMITable *spmi;
@@ -2020,9 +2021,106 @@ static __devinit void acpi_find_bmc(void)
if (status != AE_OK)
return;
- try_init_acpi(spmi);
+ try_init_spmi(spmi);
}
}
+
+static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
+ const struct pnp_device_id *dev_id)
+{
+ struct acpi_device *acpi_dev;
+ struct smi_info *info;
+ acpi_handle handle;
+ acpi_status status;
+ unsigned long long tmp;
+
+ acpi_dev = pnp_acpi_device(dev);
+ if (!acpi_dev)
+ return -ENODEV;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->addr_source = "ACPI";
+
+ handle = acpi_dev->handle;
+
+ /* _IFT tells us the interface type: KCS, BT, etc */
+ status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp);
+ if (ACPI_FAILURE(status))
+ goto err_free;
+
+ switch (tmp) {
+ case 1:
+ info->si_type = SI_KCS;
+ break;
+ case 2:
+ info->si_type = SI_SMIC;
+ break;
+ case 3:
+ info->si_type = SI_BT;
+ break;
+ default:
+ dev_info(&dev->dev, "unknown interface type %lld\n", tmp);
+ goto err_free;
+ }
+
+ if (pnp_port_valid(dev, 0)) {
+ info->io_setup = port_setup;
+ info->io.addr_type = IPMI_IO_ADDR_SPACE;
+ info->io.addr_data = pnp_port_start(dev, 0);
+ } else if (pnp_mem_valid(dev, 0)) {
+ info->io_setup = mem_setup;
+ info->io.addr_type = IPMI_MEM_ADDR_SPACE;
+ info->io.addr_data = pnp_mem_start(dev, 0);
+ } else {
+ dev_err(&dev->dev, "no I/O or memory address\n");
+ goto err_free;
+ }
+
+ info->io.regspacing = DEFAULT_REGSPACING;
+ info->io.regsize = DEFAULT_REGSPACING;
+ info->io.regshift = 0;
+
+ /* If _GPE exists, use it; otherwise use standard interrupts */
+ status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
+ if (ACPI_SUCCESS(status)) {
+ info->irq = tmp;
+ info->irq_setup = acpi_gpe_irq_setup;
+ } else if (pnp_irq_valid(dev, 0)) {
+ info->irq = pnp_irq(dev, 0);
+ info->irq_setup = std_irq_setup;
+ }
+
+ info->dev = &acpi_dev->dev;
+ pnp_set_drvdata(dev, info);
+
+ return try_smi_init(info);
+
+err_free:
+ kfree(info);
+ return -EINVAL;
+}
+
+static void __devexit ipmi_pnp_remove(struct pnp_dev *dev)
+{
+ struct smi_info *info = pnp_get_drvdata(dev);
+
+ cleanup_one_si(info);
+}
+
+static const struct pnp_device_id pnp_dev_table[] = {
+ {"IPI0001", 0},
+ {"", 0},
+};
+
+static struct pnp_driver ipmi_pnp_driver = {
+ .name = DEVICE_NAME,
+ .probe = ipmi_pnp_probe,
+ .remove = __devexit_p(ipmi_pnp_remove),
+ .id_table = pnp_dev_table,
+};
#endif
#ifdef CONFIG_DMI
@@ -2202,7 +2300,6 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
int rv;
int class_type = pdev->class & PCI_ERMC_CLASSCODE_TYPE_MASK;
struct smi_info *info;
- int first_reg_offset = 0;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
@@ -2241,9 +2338,6 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
info->addr_source_cleanup = ipmi_pci_cleanup;
info->addr_source_data = pdev;
- if (pdev->subsystem_vendor == PCI_HP_VENDOR_ID)
- first_reg_offset = 1;
-
if (pci_resource_flags(pdev, 0) & IORESOURCE_IO) {
info->io_setup = port_setup;
info->io.addr_type = IPMI_IO_ADDR_SPACE;
@@ -3108,7 +3202,10 @@ static __devinit int init_ipmi_si(void)
#endif
#ifdef CONFIG_ACPI
- acpi_find_bmc();
+ spmi_find_bmc();
+#endif
+#ifdef CONFIG_PNP
+ pnp_register_driver(&ipmi_pnp_driver);
#endif
#ifdef CONFIG_PCI
@@ -3233,6 +3330,9 @@ static __exit void cleanup_ipmi_si(void)
#ifdef CONFIG_PCI
pci_unregister_driver(&ipmi_pci_driver);
#endif
+#ifdef CONFIG_PNP
+ pnp_unregister_driver(&ipmi_pnp_driver);
+#endif
#ifdef CONFIG_PPC_OF
of_unregister_platform_driver(&ipmi_of_platform_driver);
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 5619007e7e05..f706b1dffdb3 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -233,7 +233,8 @@ int setkeycode(unsigned int scancode, unsigned int keycode)
}
/*
- * Making beeps and bells.
+ * Making beeps and bells. Note that we prefer beeps to bells, but when
+ * shutting the sound off we do both.
*/
static int kd_sound_helper(struct input_handle *handle, void *data)
@@ -242,9 +243,12 @@ static int kd_sound_helper(struct input_handle *handle, void *data)
struct input_dev *dev = handle->dev;
if (test_bit(EV_SND, dev->evbit)) {
- if (test_bit(SND_TONE, dev->sndbit))
+ if (test_bit(SND_TONE, dev->sndbit)) {
input_inject_event(handle, EV_SND, SND_TONE, *hz);
- if (test_bit(SND_BELL, handle->dev->sndbit))
+ if (*hz)
+ return 0;
+ }
+ if (test_bit(SND_BELL, dev->sndbit))
input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0);
}
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index fba76fb55abf..be832b6f8279 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -34,6 +34,16 @@
# include <linux/efi.h>
#endif
+static inline unsigned long size_inside_page(unsigned long start,
+ unsigned long size)
+{
+ unsigned long sz;
+
+ sz = PAGE_SIZE - (start & (PAGE_SIZE - 1));
+
+ return min(sz, size);
+}
+
/*
* Architectures vary in how they handle caching for addresses
* outside of main memory.
@@ -126,9 +136,7 @@ static ssize_t read_mem(struct file * file, char __user * buf,
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
if (p < PAGE_SIZE) {
- sz = PAGE_SIZE - p;
- if (sz > count)
- sz = count;
+ sz = size_inside_page(p, count);
if (sz > 0) {
if (clear_user(buf, sz))
return -EFAULT;
@@ -141,15 +149,9 @@ static ssize_t read_mem(struct file * file, char __user * buf,
#endif
while (count > 0) {
- /*
- * Handle first page in case it's not aligned
- */
- if (-p & (PAGE_SIZE - 1))
- sz = -p & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
+ unsigned long remaining;
- sz = min_t(unsigned long, sz, count);
+ sz = size_inside_page(p, count);
if (!range_is_allowed(p >> PAGE_SHIFT, count))
return -EPERM;
@@ -163,12 +165,10 @@ static ssize_t read_mem(struct file * file, char __user * buf,
if (!ptr)
return -EFAULT;
- if (copy_to_user(buf, ptr, sz)) {
- unxlate_dev_mem_ptr(p, ptr);
- return -EFAULT;
- }
-
+ remaining = copy_to_user(buf, ptr, sz);
unxlate_dev_mem_ptr(p, ptr);
+ if (remaining)
+ return -EFAULT;
buf += sz;
p += sz;
@@ -196,9 +196,7 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
if (p < PAGE_SIZE) {
- unsigned long sz = PAGE_SIZE - p;
- if (sz > count)
- sz = count;
+ sz = size_inside_page(p, count);
/* Hmm. Do something? */
buf += sz;
p += sz;
@@ -208,15 +206,7 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
#endif
while (count > 0) {
- /*
- * Handle first page in case it's not aligned
- */
- if (-p & (PAGE_SIZE - 1))
- sz = -p & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
-
- sz = min_t(unsigned long, sz, count);
+ sz = size_inside_page(p, count);
if (!range_is_allowed(p >> PAGE_SHIFT, sz))
return -EPERM;
@@ -234,16 +224,14 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
}
copied = copy_from_user(ptr, buf, sz);
+ unxlate_dev_mem_ptr(p, ptr);
if (copied) {
written += sz - copied;
- unxlate_dev_mem_ptr(p, ptr);
if (written)
break;
return -EFAULT;
}
- unxlate_dev_mem_ptr(p, ptr);
-
buf += sz;
p += sz;
count -= sz;
@@ -417,27 +405,18 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
if (p < PAGE_SIZE && low_count > 0) {
- size_t tmp = PAGE_SIZE - p;
- if (tmp > low_count) tmp = low_count;
- if (clear_user(buf, tmp))
+ sz = size_inside_page(p, low_count);
+ if (clear_user(buf, sz))
return -EFAULT;
- buf += tmp;
- p += tmp;
- read += tmp;
- low_count -= tmp;
- count -= tmp;
+ buf += sz;
+ p += sz;
+ read += sz;
+ low_count -= sz;
+ count -= sz;
}
#endif
while (low_count > 0) {
- /*
- * Handle first page in case it's not aligned
- */
- if (-p & (PAGE_SIZE - 1))
- sz = -p & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
-
- sz = min_t(unsigned long, sz, low_count);
+ sz = size_inside_page(p, low_count);
/*
* On ia64 if a page has been mapped somewhere as
@@ -461,21 +440,18 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
if (!kbuf)
return -ENOMEM;
while (count > 0) {
- int len = count;
-
- if (len > PAGE_SIZE)
- len = PAGE_SIZE;
- len = vread(kbuf, (char *)p, len);
- if (!len)
+ sz = size_inside_page(p, count);
+ sz = vread(kbuf, (char *)p, sz);
+ if (!sz)
break;
- if (copy_to_user(buf, kbuf, len)) {
+ if (copy_to_user(buf, kbuf, sz)) {
free_page((unsigned long)kbuf);
return -EFAULT;
}
- count -= len;
- buf += len;
- read += len;
- p += len;
+ count -= sz;
+ buf += sz;
+ read += sz;
+ p += sz;
}
free_page((unsigned long)kbuf);
}
@@ -485,7 +461,7 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
static inline ssize_t
-do_write_kmem(void *p, unsigned long realp, const char __user * buf,
+do_write_kmem(unsigned long p, const char __user *buf,
size_t count, loff_t *ppos)
{
ssize_t written, sz;
@@ -494,14 +470,11 @@ do_write_kmem(void *p, unsigned long realp, const char __user * buf,
written = 0;
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
- if (realp < PAGE_SIZE) {
- unsigned long sz = PAGE_SIZE - realp;
- if (sz > count)
- sz = count;
+ if (p < PAGE_SIZE) {
+ sz = size_inside_page(p, count);
/* Hmm. Do something? */
buf += sz;
p += sz;
- realp += sz;
count -= sz;
written += sz;
}
@@ -509,22 +482,15 @@ do_write_kmem(void *p, unsigned long realp, const char __user * buf,
while (count > 0) {
char *ptr;
- /*
- * Handle first page in case it's not aligned
- */
- if (-realp & (PAGE_SIZE - 1))
- sz = -realp & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
- sz = min_t(unsigned long, sz, count);
+ sz = size_inside_page(p, count);
/*
* On ia64 if a page has been mapped somewhere as
* uncached, then it must also be accessed uncached
* by the kernel or data corruption may occur
*/
- ptr = xlate_dev_kmem_ptr(p);
+ ptr = xlate_dev_kmem_ptr((char *)p);
copied = copy_from_user(ptr, buf, sz);
if (copied) {
@@ -535,7 +501,6 @@ do_write_kmem(void *p, unsigned long realp, const char __user * buf,
}
buf += sz;
p += sz;
- realp += sz;
count -= sz;
written += sz;
}
@@ -554,19 +519,14 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
unsigned long p = *ppos;
ssize_t wrote = 0;
ssize_t virtr = 0;
- ssize_t written;
char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
if (p < (unsigned long) high_memory) {
-
- wrote = count;
- if (count > (unsigned long) high_memory - p)
- wrote = (unsigned long) high_memory - p;
-
- written = do_write_kmem((void*)p, p, buf, wrote, ppos);
- if (written != wrote)
- return written;
- wrote = written;
+ unsigned long to_write = min_t(unsigned long, count,
+ (unsigned long)high_memory - p);
+ wrote = do_write_kmem(p, buf, to_write, ppos);
+ if (wrote != to_write)
+ return wrote;
p += wrote;
buf += wrote;
count -= wrote;
@@ -577,24 +537,21 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
if (!kbuf)
return wrote ? wrote : -ENOMEM;
while (count > 0) {
- int len = count;
-
- if (len > PAGE_SIZE)
- len = PAGE_SIZE;
- if (len) {
- written = copy_from_user(kbuf, buf, len);
- if (written) {
- if (wrote + virtr)
- break;
- free_page((unsigned long)kbuf);
- return -EFAULT;
- }
+ unsigned long sz = size_inside_page(p, count);
+ unsigned long n;
+
+ n = copy_from_user(kbuf, buf, sz);
+ if (n) {
+ if (wrote + virtr)
+ break;
+ free_page((unsigned long)kbuf);
+ return -EFAULT;
}
- len = vwrite(kbuf, (char *)p, len);
- count -= len;
- buf += len;
- virtr += len;
- p += len;
+ sz = vwrite(kbuf, (char *)p, sz);
+ count -= sz;
+ buf += sz;
+ virtr += sz;
+ p += sz;
}
free_page((unsigned long)kbuf);
}
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 96f1cd086dd2..94a136e96c06 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -60,9 +60,7 @@ static DEFINE_MUTEX(misc_mtx);
* Assigned numbers, used for dynamic minors
*/
#define DYNAMIC_MINORS 64 /* like dynamic majors */
-static unsigned char misc_minors[DYNAMIC_MINORS / 8];
-
-extern int pmu_device_init(void);
+static DECLARE_BITMAP(misc_minors, DYNAMIC_MINORS);
#ifdef CONFIG_PROC_FS
static void *misc_seq_start(struct seq_file *seq, loff_t *pos)
@@ -198,24 +196,23 @@ int misc_register(struct miscdevice * misc)
}
if (misc->minor == MISC_DYNAMIC_MINOR) {
- int i = DYNAMIC_MINORS;
- while (--i >= 0)
- if ( (misc_minors[i>>3] & (1 << (i&7))) == 0)
- break;
- if (i<0) {
+ int i = find_first_zero_bit(misc_minors, DYNAMIC_MINORS);
+ if (i >= DYNAMIC_MINORS) {
mutex_unlock(&misc_mtx);
return -EBUSY;
}
- misc->minor = i;
+ misc->minor = DYNAMIC_MINORS - i - 1;
+ set_bit(i, misc_minors);
}
- if (misc->minor < DYNAMIC_MINORS)
- misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
dev = MKDEV(MISC_MAJOR, misc->minor);
misc->this_device = device_create(misc_class, misc->parent, dev,
misc, "%s", misc->name);
if (IS_ERR(misc->this_device)) {
+ int i = DYNAMIC_MINORS - misc->minor - 1;
+ if (i < DYNAMIC_MINORS && i >= 0)
+ clear_bit(i, misc_minors);
err = PTR_ERR(misc->this_device);
goto out;
}
@@ -242,7 +239,7 @@ int misc_register(struct miscdevice * misc)
int misc_deregister(struct miscdevice *misc)
{
- int i = misc->minor;
+ int i = DYNAMIC_MINORS - misc->minor - 1;
if (list_empty(&misc->list))
return -EINVAL;
@@ -250,9 +247,8 @@ int misc_deregister(struct miscdevice *misc)
mutex_lock(&misc_mtx);
list_del(&misc->list);
device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
- if (i < DYNAMIC_MINORS && i>0) {
- misc_minors[i>>3] &= ~(1 << (misc->minor & 7));
- }
+ if (i < DYNAMIC_MINORS && i >= 0)
+ clear_bit(i, misc_minors);
mutex_unlock(&misc_mtx);
return 0;
}
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index d3400b20444f..7d73cd430340 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -358,7 +358,7 @@ struct port {
u8 update_flow_control;
struct ctrl_ul ctrl_ul;
struct ctrl_dl ctrl_dl;
- struct kfifo *fifo_ul;
+ struct kfifo fifo_ul;
void __iomem *dl_addr[2];
u32 dl_size[2];
u8 toggle_dl;
@@ -685,8 +685,6 @@ static int nozomi_read_config_table(struct nozomi *dc)
dump_table(dc);
for (i = PORT_MDM; i < MAX_PORT; i++) {
- dc->port[i].fifo_ul =
- kfifo_alloc(FIFO_BUFFER_SIZE_UL, GFP_ATOMIC, NULL);
memset(&dc->port[i].ctrl_dl, 0, sizeof(struct ctrl_dl));
memset(&dc->port[i].ctrl_ul, 0, sizeof(struct ctrl_ul));
}
@@ -798,7 +796,7 @@ static int send_data(enum port_type index, struct nozomi *dc)
struct tty_struct *tty = tty_port_tty_get(&port->port);
/* Get data from tty and place in buf for now */
- size = __kfifo_get(port->fifo_ul, dc->send_buf,
+ size = kfifo_out(&port->fifo_ul, dc->send_buf,
ul_size < SEND_BUF_MAX ? ul_size : SEND_BUF_MAX);
if (size == 0) {
@@ -988,11 +986,11 @@ static int receive_flow_control(struct nozomi *dc)
} else if (old_ctrl.CTS == 0 && ctrl_dl.CTS == 1) {
- if (__kfifo_len(dc->port[port].fifo_ul)) {
+ if (kfifo_len(&dc->port[port].fifo_ul)) {
DBG1("Enable interrupt (0x%04X) on port: %d",
enable_ier, port);
DBG1("Data in buffer [%d], enable transmit! ",
- __kfifo_len(dc->port[port].fifo_ul));
+ kfifo_len(&dc->port[port].fifo_ul));
enable_transmit_ul(port, dc);
} else {
DBG1("No data in buffer...");
@@ -1433,6 +1431,16 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
goto err_free_sbuf;
}
+ for (i = PORT_MDM; i < MAX_PORT; i++) {
+ if (kfifo_alloc(&dc->port[i].fifo_ul,
+ FIFO_BUFFER_SIZE_UL, GFP_ATOMIC)) {
+ dev_err(&pdev->dev,
+ "Could not allocate kfifo buffer\n");
+ ret = -ENOMEM;
+ goto err_free_kfifo;
+ }
+ }
+
spin_lock_init(&dc->spin_mutex);
nozomi_setup_private_data(dc);
@@ -1445,7 +1453,7 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
NOZOMI_NAME, dc);
if (unlikely(ret)) {
dev_err(&pdev->dev, "can't request irq %d\n", pdev->irq);
- goto err_free_sbuf;
+ goto err_free_kfifo;
}
DBG1("base_addr: %p", dc->base_addr);
@@ -1464,13 +1472,28 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
dc->state = NOZOMI_STATE_ENABLED;
for (i = 0; i < MAX_PORT; i++) {
+ struct device *tty_dev;
+
mutex_init(&dc->port[i].tty_sem);
tty_port_init(&dc->port[i].port);
- tty_register_device(ntty_driver, dc->index_start + i,
+ tty_dev = tty_register_device(ntty_driver, dc->index_start + i,
&pdev->dev);
+
+ if (IS_ERR(tty_dev)) {
+ ret = PTR_ERR(tty_dev);
+ dev_err(&pdev->dev, "Could not allocate tty?\n");
+ goto err_free_tty;
+ }
}
+
return 0;
+err_free_tty:
+ for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i)
+ tty_unregister_device(ntty_driver, i);
+err_free_kfifo:
+ for (i = 0; i < MAX_PORT; i++)
+ kfifo_free(&dc->port[i].fifo_ul);
err_free_sbuf:
kfree(dc->send_buf);
iounmap(dc->base_addr);
@@ -1536,8 +1559,7 @@ static void __devexit nozomi_card_exit(struct pci_dev *pdev)
free_irq(pdev->irq, dc);
for (i = 0; i < MAX_PORT; i++)
- if (dc->port[i].fifo_ul)
- kfifo_free(dc->port[i].fifo_ul);
+ kfifo_free(&dc->port[i].fifo_ul);
kfree(dc->send_buf);
@@ -1673,7 +1695,7 @@ static int ntty_write(struct tty_struct *tty, const unsigned char *buffer,
goto exit;
}
- rval = __kfifo_put(port->fifo_ul, (unsigned char *)buffer, count);
+ rval = kfifo_in(&port->fifo_ul, (unsigned char *)buffer, count);
/* notify card */
if (unlikely(dc == NULL)) {
@@ -1721,7 +1743,7 @@ static int ntty_write_room(struct tty_struct *tty)
if (!port->port.count)
goto exit;
- room = port->fifo_ul->size - __kfifo_len(port->fifo_ul);
+ room = port->fifo_ul.size - kfifo_len(&port->fifo_ul);
exit:
mutex_unlock(&port->tty_sem);
@@ -1878,7 +1900,7 @@ static s32 ntty_chars_in_buffer(struct tty_struct *tty)
goto exit_in_buffer;
}
- rval = __kfifo_len(port->fifo_ul);
+ rval = kfifo_len(&port->fifo_ul);
exit_in_buffer:
return rval;
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 4008e2ce73c1..fdbcc9fd6d31 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -264,10 +264,16 @@ static ssize_t nvram_write(struct file *file, const char __user *buf,
unsigned char contents[NVRAM_BYTES];
unsigned i = *ppos;
unsigned char *tmp;
- int len;
- len = (NVRAM_BYTES - i) < count ? (NVRAM_BYTES - i) : count;
- if (copy_from_user(contents, buf, len))
+ if (i >= NVRAM_BYTES)
+ return 0; /* Past EOF */
+
+ if (count > NVRAM_BYTES - i)
+ count = NVRAM_BYTES - i;
+ if (count > NVRAM_BYTES)
+ return -EFAULT; /* Can't happen, but prove it to gcc */
+
+ if (copy_from_user(contents, buf, count))
return -EFAULT;
spin_lock_irq(&rtc_lock);
@@ -275,7 +281,7 @@ static ssize_t nvram_write(struct file *file, const char __user *buf,
if (!__nvram_check_checksum())
goto checksum_err;
- for (tmp = contents; count-- > 0 && i < NVRAM_BYTES; ++i, ++tmp)
+ for (tmp = contents; count--; ++i, ++tmp)
__nvram_write_byte(*tmp, i);
__nvram_set_checksum();
diff --git a/drivers/char/nwflash.c b/drivers/char/nwflash.c
index 8c7df5ba088f..f80810901db6 100644
--- a/drivers/char/nwflash.c
+++ b/drivers/char/nwflash.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/mutex.h>
+#include <linux/jiffies.h>
#include <asm/hardware/dec21285.h>
#include <asm/io.h>
diff --git a/drivers/char/random.c b/drivers/char/random.c
index dcd08635cf1b..8258982b49ec 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1245,12 +1245,8 @@ static int proc_do_uuid(ctl_table *table, int write,
if (uuid[8] == 0)
generate_random_uuid(uuid);
- sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
- "%02x%02x%02x%02x%02x%02x",
- uuid[0], uuid[1], uuid[2], uuid[3],
- uuid[4], uuid[5], uuid[6], uuid[7],
- uuid[8], uuid[9], uuid[10], uuid[11],
- uuid[12], uuid[13], uuid[14], uuid[15]);
+ sprintf(buf, "%pU", uuid);
+
fake_table.data = buf;
fake_table.maxlen = sizeof(buf);
@@ -1310,7 +1306,7 @@ ctl_table random_table[] = {
/********************************************************************
*
- * Random funtions for networking
+ * Random functions for networking
*
********************************************************************/
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index 8c262aaf7c26..0798754a607c 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -487,7 +487,7 @@ static struct sonypi_device {
int camera_power;
int bluetooth_power;
struct mutex lock;
- struct kfifo *fifo;
+ struct kfifo fifo;
spinlock_t fifo_lock;
wait_queue_head_t fifo_proc_list;
struct fasync_struct *fifo_async;
@@ -496,7 +496,7 @@ static struct sonypi_device {
struct input_dev *input_jog_dev;
struct input_dev *input_key_dev;
struct work_struct input_work;
- struct kfifo *input_fifo;
+ struct kfifo input_fifo;
spinlock_t input_fifo_lock;
} sonypi_device;
@@ -777,8 +777,9 @@ static void input_keyrelease(struct work_struct *work)
{
struct sonypi_keypress kp;
- while (kfifo_get(sonypi_device.input_fifo, (unsigned char *)&kp,
- sizeof(kp)) == sizeof(kp)) {
+ while (kfifo_out_locked(&sonypi_device.input_fifo, (unsigned char *)&kp,
+ sizeof(kp), &sonypi_device.input_fifo_lock)
+ == sizeof(kp)) {
msleep(10);
input_report_key(kp.dev, kp.key, 0);
input_sync(kp.dev);
@@ -827,8 +828,9 @@ static void sonypi_report_input_event(u8 event)
if (kp.dev) {
input_report_key(kp.dev, kp.key, 1);
input_sync(kp.dev);
- kfifo_put(sonypi_device.input_fifo,
- (unsigned char *)&kp, sizeof(kp));
+ kfifo_in_locked(&sonypi_device.input_fifo,
+ (unsigned char *)&kp, sizeof(kp),
+ &sonypi_device.input_fifo_lock);
schedule_work(&sonypi_device.input_work);
}
}
@@ -880,7 +882,8 @@ found:
acpi_bus_generate_proc_event(sonypi_acpi_device, 1, event);
#endif
- kfifo_put(sonypi_device.fifo, (unsigned char *)&event, sizeof(event));
+ kfifo_in_locked(&sonypi_device.fifo, (unsigned char *)&event,
+ sizeof(event), &sonypi_device.fifo_lock);
kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN);
wake_up_interruptible(&sonypi_device.fifo_proc_list);
@@ -906,7 +909,7 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
mutex_lock(&sonypi_device.lock);
/* Flush input queue on first open */
if (!sonypi_device.open_count)
- kfifo_reset(sonypi_device.fifo);
+ kfifo_reset(&sonypi_device.fifo);
sonypi_device.open_count++;
mutex_unlock(&sonypi_device.lock);
unlock_kernel();
@@ -919,17 +922,18 @@ static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
ssize_t ret;
unsigned char c;
- if ((kfifo_len(sonypi_device.fifo) == 0) &&
+ if ((kfifo_len(&sonypi_device.fifo) == 0) &&
(file->f_flags & O_NONBLOCK))
return -EAGAIN;
ret = wait_event_interruptible(sonypi_device.fifo_proc_list,
- kfifo_len(sonypi_device.fifo) != 0);
+ kfifo_len(&sonypi_device.fifo) != 0);
if (ret)
return ret;
while (ret < count &&
- (kfifo_get(sonypi_device.fifo, &c, sizeof(c)) == sizeof(c))) {
+ (kfifo_out_locked(&sonypi_device.fifo, &c, sizeof(c),
+ &sonypi_device.fifo_lock) == sizeof(c))) {
if (put_user(c, buf++))
return -EFAULT;
ret++;
@@ -946,7 +950,7 @@ static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
{
poll_wait(file, &sonypi_device.fifo_proc_list, wait);
- if (kfifo_len(sonypi_device.fifo))
+ if (kfifo_len(&sonypi_device.fifo))
return POLLIN | POLLRDNORM;
return 0;
}
@@ -1313,11 +1317,10 @@ static int __devinit sonypi_probe(struct platform_device *dev)
"http://www.linux.it/~malattia/wiki/index.php/Sony_drivers\n");
spin_lock_init(&sonypi_device.fifo_lock);
- sonypi_device.fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL,
- &sonypi_device.fifo_lock);
- if (IS_ERR(sonypi_device.fifo)) {
+ error = kfifo_alloc(&sonypi_device.fifo, SONYPI_BUF_SIZE, GFP_KERNEL);
+ if (error) {
printk(KERN_ERR "sonypi: kfifo_alloc failed\n");
- return PTR_ERR(sonypi_device.fifo);
+ return error;
}
init_waitqueue_head(&sonypi_device.fifo_proc_list);
@@ -1393,12 +1396,10 @@ static int __devinit sonypi_probe(struct platform_device *dev)
}
spin_lock_init(&sonypi_device.input_fifo_lock);
- sonypi_device.input_fifo =
- kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL,
- &sonypi_device.input_fifo_lock);
- if (IS_ERR(sonypi_device.input_fifo)) {
+ error = kfifo_alloc(&sonypi_device.input_fifo, SONYPI_BUF_SIZE,
+ GFP_KERNEL);
+ if (error) {
printk(KERN_ERR "sonypi: kfifo_alloc failed\n");
- error = PTR_ERR(sonypi_device.input_fifo);
goto err_inpdev_unregister;
}
@@ -1423,7 +1424,7 @@ static int __devinit sonypi_probe(struct platform_device *dev)
pci_disable_device(pcidev);
err_put_pcidev:
pci_dev_put(pcidev);
- kfifo_free(sonypi_device.fifo);
+ kfifo_free(&sonypi_device.fifo);
return error;
}
@@ -1438,7 +1439,7 @@ static int __devexit sonypi_remove(struct platform_device *dev)
if (useinput) {
input_unregister_device(sonypi_device.input_key_dev);
input_unregister_device(sonypi_device.input_jog_dev);
- kfifo_free(sonypi_device.input_fifo);
+ kfifo_free(&sonypi_device.input_fifo);
}
misc_deregister(&sonypi_misc_device);
@@ -1451,7 +1452,7 @@ static int __devexit sonypi_remove(struct platform_device *dev)
pci_dev_put(sonypi_device.dev);
}
- kfifo_free(sonypi_device.fifo);
+ kfifo_free(&sonypi_device.fifo);
return 0;
}
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 44203ff599da..1ae2de7d8b4f 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -339,7 +339,7 @@ static struct sysrq_key_op sysrq_term_op = {
static void moom_callback(struct work_struct *ignored)
{
- out_of_memory(node_zonelist(0, GFP_KERNEL), GFP_KERNEL, 0);
+ out_of_memory(node_zonelist(0, GFP_KERNEL), GFP_KERNEL, 0, NULL);
}
static DECLARE_WORK(moom_work, moom_callback);
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 1e3d728dbf7e..50faa1fb0f06 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -164,6 +164,9 @@ module_param(default_utf8, int, S_IRUGO | S_IWUSR);
int global_cursor_default = -1;
module_param(global_cursor_default, int, S_IRUGO | S_IWUSR);
+static int cur_default = CUR_DEFAULT;
+module_param(cur_default, int, S_IRUGO | S_IWUSR);
+
/*
* ignore_poke: don't unblank the screen when things are typed. This is
* mainly for the privacy of braille terminal users.
@@ -184,12 +187,10 @@ static DECLARE_WORK(console_work, console_callback);
* fg_console is the current virtual console,
* last_console is the last used one,
* want_console is the console we want to switch to,
- * kmsg_redirect is the console for kernel messages,
*/
int fg_console;
int last_console;
int want_console = -1;
-int kmsg_redirect;
/*
* For each existing display, we have a pointer to console currently visible
@@ -1638,7 +1639,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
/* do not do set_leds here because this causes an endless tasklet loop
when the keyboard hasn't been initialized yet */
- vc->vc_cursor_type = CUR_DEFAULT;
+ vc->vc_cursor_type = cur_default;
vc->vc_complement_mask = vc->vc_s_complement_mask;
default_attr(vc);
@@ -1840,7 +1841,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
if (vc->vc_par[0])
vc->vc_cursor_type = vc->vc_par[0] | (vc->vc_par[1] << 8) | (vc->vc_par[2] << 16);
else
- vc->vc_cursor_type = CUR_DEFAULT;
+ vc->vc_cursor_type = cur_default;
return;
}
break;
@@ -2434,6 +2435,37 @@ struct tty_driver *console_driver;
#ifdef CONFIG_VT_CONSOLE
+/**
+ * vt_kmsg_redirect() - Sets/gets the kernel message console
+ * @new: The new virtual terminal number or -1 if the console should stay
+ * unchanged
+ *
+ * By default, the kernel messages are always printed on the current virtual
+ * console. However, the user may modify that default with the
+ * TIOCL_SETKMSGREDIRECT ioctl call.
+ *
+ * This function sets the kernel message console to be @new. It returns the old
+ * virtual console number. The virtual terminal number 0 (both as parameter and
+ * return value) means no redirection (i.e. always printed on the currently
+ * active console).
+ *
+ * The parameter -1 means that only the current console is returned, but the
+ * value is not modified. You may use the macro vt_get_kmsg_redirect() in that
+ * case to make the code more understandable.
+ *
+ * When the kernel is compiled without CONFIG_VT_CONSOLE, this function ignores
+ * the parameter and always returns 0.
+ */
+int vt_kmsg_redirect(int new)
+{
+ static int kmsg_con;
+
+ if (new != -1)
+ return xchg(&kmsg_con, new);
+ else
+ return kmsg_con;
+}
+
/*
* Console on virtual terminal
*
@@ -2448,6 +2480,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
const ushort *start;
ushort cnt = 0;
ushort myx;
+ int kmsg_console;
/* console busy or not yet initialized */
if (!printable)
@@ -2455,8 +2488,9 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
if (!spin_trylock(&printing_lock))
return;
- if (kmsg_redirect && vc_cons_allocated(kmsg_redirect - 1))
- vc = vc_cons[kmsg_redirect - 1].d;
+ kmsg_console = vt_get_kmsg_redirect();
+ if (kmsg_console && vc_cons_allocated(kmsg_console - 1))
+ vc = vc_cons[kmsg_console - 1].d;
/* read `x' only after setting currcons properly (otherwise
the `x' macro will read the x of the foreground console). */
@@ -2613,7 +2647,7 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
ret = set_vesa_blanking(p);
break;
case TIOCL_GETKMSGREDIRECT:
- data = kmsg_redirect;
+ data = vt_get_kmsg_redirect();
ret = __put_user(data, p);
break;
case TIOCL_SETKMSGREDIRECT:
@@ -2623,7 +2657,7 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
if (get_user(data, p+1))
ret = -EFAULT;
else
- kmsg_redirect = data;
+ vt_kmsg_redirect(data);
}
break;
case TIOCL_GETFGCONSOLE:
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-01 16:38:51 +0000