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-rw-r--r--drivers/char/agp/frontend.c28
-rw-r--r--drivers/char/cs5535_gpio.c3
-rw-r--r--drivers/char/efirtc.c12
-rw-r--r--drivers/char/generic_nvram.c9
-rw-r--r--drivers/char/hw_random/core.c1
-rw-r--r--drivers/char/keyboard.c213
-rw-r--r--drivers/char/mem.c19
-rw-r--r--drivers/char/misc.c5
-rw-r--r--drivers/char/mspec.c2
-rw-r--r--drivers/char/n_r3964.c2
-rw-r--r--drivers/char/nvram.c5
-rw-r--r--drivers/char/pc8736x_gpio.c2
-rw-r--r--drivers/char/rio/route.h2
-rw-r--r--drivers/char/scx200_gpio.c2
-rw-r--r--drivers/char/tb0219.c6
-rw-r--r--drivers/char/tty_ioctl.c2
16 files changed, 144 insertions, 169 deletions
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index a96f3197e60..43412c03969 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -676,25 +676,25 @@ static int agp_open(struct inode *inode, struct file *file)
int minor = iminor(inode);
struct agp_file_private *priv;
struct agp_client *client;
- int rc = -ENXIO;
-
- lock_kernel();
- mutex_lock(&(agp_fe.agp_mutex));
if (minor != AGPGART_MINOR)
- goto err_out;
+ return -ENXIO;
+
+ mutex_lock(&(agp_fe.agp_mutex));
priv = kzalloc(sizeof(struct agp_file_private), GFP_KERNEL);
- if (priv == NULL)
- goto err_out_nomem;
+ if (priv == NULL) {
+ mutex_unlock(&(agp_fe.agp_mutex));
+ return -ENOMEM;
+ }
set_bit(AGP_FF_ALLOW_CLIENT, &priv->access_flags);
priv->my_pid = current->pid;
- if (capable(CAP_SYS_RAWIO)) {
+ if (capable(CAP_SYS_RAWIO))
/* Root priv, can be controller */
set_bit(AGP_FF_ALLOW_CONTROLLER, &priv->access_flags);
- }
+
client = agp_find_client_by_pid(current->pid);
if (client != NULL) {
@@ -704,16 +704,10 @@ static int agp_open(struct inode *inode, struct file *file)
file->private_data = (void *) priv;
agp_insert_file_private(priv);
DBG("private=%p, client=%p", priv, client);
- mutex_unlock(&(agp_fe.agp_mutex));
- unlock_kernel();
- return 0;
-err_out_nomem:
- rc = -ENOMEM;
-err_out:
mutex_unlock(&(agp_fe.agp_mutex));
- unlock_kernel();
- return rc;
+
+ return 0;
}
diff --git a/drivers/char/cs5535_gpio.c b/drivers/char/cs5535_gpio.c
index 04ba906b488..4d830dc482e 100644
--- a/drivers/char/cs5535_gpio.c
+++ b/drivers/char/cs5535_gpio.c
@@ -17,7 +17,7 @@
#include <linux/cdev.h>
#include <linux/ioport.h>
#include <linux/pci.h>
-#include <linux/smp_lock.h>
+
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -158,7 +158,6 @@ static int cs5535_gpio_open(struct inode *inode, struct file *file)
{
u32 m = iminor(inode);
- cycle_kernel_lock();
/* the mask says which pins are usable by this driver */
if ((mask & (1 << m)) == 0)
return -EINVAL;
diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c
index 34d15d54823..26a47dc88f6 100644
--- a/drivers/char/efirtc.c
+++ b/drivers/char/efirtc.c
@@ -27,8 +27,6 @@
* - Add module support
*/
-
-#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/miscdevice.h>
@@ -174,13 +172,12 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd,
return -EINVAL;
case RTC_RD_TIME:
- lock_kernel();
spin_lock_irqsave(&efi_rtc_lock, flags);
status = efi.get_time(&eft, &cap);
spin_unlock_irqrestore(&efi_rtc_lock,flags);
- unlock_kernel();
+
if (status != EFI_SUCCESS) {
/* should never happen */
printk(KERN_ERR "efitime: can't read time\n");
@@ -202,13 +199,11 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd,
convert_to_efi_time(&wtime, &eft);
- lock_kernel();
spin_lock_irqsave(&efi_rtc_lock, flags);
status = efi.set_time(&eft);
spin_unlock_irqrestore(&efi_rtc_lock,flags);
- unlock_kernel();
return status == EFI_SUCCESS ? 0 : -EINVAL;
@@ -224,7 +219,6 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd,
convert_to_efi_time(&wtime, &eft);
- lock_kernel();
spin_lock_irqsave(&efi_rtc_lock, flags);
/*
* XXX Fixme:
@@ -235,19 +229,16 @@ static long efi_rtc_ioctl(struct file *file, unsigned int cmd,
status = efi.set_wakeup_time((efi_bool_t)enabled, &eft);
spin_unlock_irqrestore(&efi_rtc_lock,flags);
- unlock_kernel();
return status == EFI_SUCCESS ? 0 : -EINVAL;
case RTC_WKALM_RD:
- lock_kernel();
spin_lock_irqsave(&efi_rtc_lock, flags);
status = efi.get_wakeup_time((efi_bool_t *)&enabled, (efi_bool_t *)&pending, &eft);
spin_unlock_irqrestore(&efi_rtc_lock,flags);
- unlock_kernel();
if (status != EFI_SUCCESS) return -EINVAL;
@@ -277,7 +268,6 @@ static int efi_rtc_open(struct inode *inode, struct file *file)
* We do accept multiple open files at the same time as we
* synchronize on the per call operation.
*/
- cycle_kernel_lock();
return 0;
}
diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c
index ef31738c2cb..fda4181b5e6 100644
--- a/drivers/char/generic_nvram.c
+++ b/drivers/char/generic_nvram.c
@@ -19,7 +19,6 @@
#include <linux/miscdevice.h>
#include <linux/fcntl.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/nvram.h>
#ifdef CONFIG_PPC_PMAC
@@ -32,7 +31,6 @@ static ssize_t nvram_len;
static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
{
- lock_kernel();
switch (origin) {
case 1:
offset += file->f_pos;
@@ -41,12 +39,11 @@ static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
offset += nvram_len;
break;
}
- if (offset < 0) {
- unlock_kernel();
+ if (offset < 0)
return -EINVAL;
- }
+
file->f_pos = offset;
- unlock_kernel();
+
return file->f_pos;
}
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 8b7d56a0fe3..e989f67bb61 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -76,7 +76,6 @@ static int rng_dev_open(struct inode *inode, struct file *filp)
return -EINVAL;
if (filp->f_mode & FMODE_WRITE)
return -EINVAL;
- cycle_kernel_lock();
return 0;
}
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 950837cf9e9..5619007e7e0 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -46,8 +46,6 @@
extern void ctrl_alt_del(void);
-#define to_handle_h(n) container_of(n, struct input_handle, h_node)
-
/*
* Exported functions/variables
*/
@@ -132,6 +130,7 @@ int shift_state = 0;
*/
static struct input_handler kbd_handler;
+static DEFINE_SPINLOCK(kbd_event_lock);
static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */
static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */
static int dead_key_next;
@@ -190,78 +189,85 @@ EXPORT_SYMBOL_GPL(unregister_keyboard_notifier);
* etc.). So this means that scancodes for the extra function keys won't
* be valid for the first event device, but will be for the second.
*/
+
+struct getset_keycode_data {
+ unsigned int scancode;
+ unsigned int keycode;
+ int error;
+};
+
+static int getkeycode_helper(struct input_handle *handle, void *data)
+{
+ struct getset_keycode_data *d = data;
+
+ d->error = input_get_keycode(handle->dev, d->scancode, &d->keycode);
+
+ return d->error == 0; /* stop as soon as we successfully get one */
+}
+
int getkeycode(unsigned int scancode)
{
- struct input_handle *handle;
- int keycode;
- int error = -ENODEV;
+ struct getset_keycode_data d = { scancode, 0, -ENODEV };
- list_for_each_entry(handle, &kbd_handler.h_list, h_node) {
- error = input_get_keycode(handle->dev, scancode, &keycode);
- if (!error)
- return keycode;
- }
+ input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper);
- return error;
+ return d.error ?: d.keycode;
+}
+
+static int setkeycode_helper(struct input_handle *handle, void *data)
+{
+ struct getset_keycode_data *d = data;
+
+ d->error = input_set_keycode(handle->dev, d->scancode, d->keycode);
+
+ return d->error == 0; /* stop as soon as we successfully set one */
}
int setkeycode(unsigned int scancode, unsigned int keycode)
{
- struct input_handle *handle;
- int error = -ENODEV;
+ struct getset_keycode_data d = { scancode, keycode, -ENODEV };
- list_for_each_entry(handle, &kbd_handler.h_list, h_node) {
- error = input_set_keycode(handle->dev, scancode, keycode);
- if (!error)
- break;
- }
+ input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper);
- return error;
+ return d.error;
}
/*
* Making beeps and bells.
*/
-static void kd_nosound(unsigned long ignored)
+
+static int kd_sound_helper(struct input_handle *handle, void *data)
{
- struct input_handle *handle;
+ unsigned int *hz = data;
+ struct input_dev *dev = handle->dev;
- list_for_each_entry(handle, &kbd_handler.h_list, h_node) {
- if (test_bit(EV_SND, handle->dev->evbit)) {
- if (test_bit(SND_TONE, handle->dev->sndbit))
- input_inject_event(handle, EV_SND, SND_TONE, 0);
- if (test_bit(SND_BELL, handle->dev->sndbit))
- input_inject_event(handle, EV_SND, SND_BELL, 0);
- }
+ if (test_bit(EV_SND, dev->evbit)) {
+ if (test_bit(SND_TONE, dev->sndbit))
+ input_inject_event(handle, EV_SND, SND_TONE, *hz);
+ if (test_bit(SND_BELL, handle->dev->sndbit))
+ input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0);
}
+
+ return 0;
+}
+
+static void kd_nosound(unsigned long ignored)
+{
+ static unsigned int zero;
+
+ input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper);
}
static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0);
void kd_mksound(unsigned int hz, unsigned int ticks)
{
- struct list_head *node;
+ del_timer_sync(&kd_mksound_timer);
- del_timer(&kd_mksound_timer);
+ input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper);
- if (hz) {
- list_for_each_prev(node, &kbd_handler.h_list) {
- struct input_handle *handle = to_handle_h(node);
- if (test_bit(EV_SND, handle->dev->evbit)) {
- if (test_bit(SND_TONE, handle->dev->sndbit)) {
- input_inject_event(handle, EV_SND, SND_TONE, hz);
- break;
- }
- if (test_bit(SND_BELL, handle->dev->sndbit)) {
- input_inject_event(handle, EV_SND, SND_BELL, 1);
- break;
- }
- }
- }
- if (ticks)
- mod_timer(&kd_mksound_timer, jiffies + ticks);
- } else
- kd_nosound(0);
+ if (hz && ticks)
+ mod_timer(&kd_mksound_timer, jiffies + ticks);
}
EXPORT_SYMBOL(kd_mksound);
@@ -269,27 +275,34 @@ EXPORT_SYMBOL(kd_mksound);
* Setting the keyboard rate.
*/
-int kbd_rate(struct kbd_repeat *rep)
+static int kbd_rate_helper(struct input_handle *handle, void *data)
{
- struct list_head *node;
- unsigned int d = 0;
- unsigned int p = 0;
-
- list_for_each(node, &kbd_handler.h_list) {
- struct input_handle *handle = to_handle_h(node);
- struct input_dev *dev = handle->dev;
-
- if (test_bit(EV_REP, dev->evbit)) {
- if (rep->delay > 0)
- input_inject_event(handle, EV_REP, REP_DELAY, rep->delay);
- if (rep->period > 0)
- input_inject_event(handle, EV_REP, REP_PERIOD, rep->period);
- d = dev->rep[REP_DELAY];
- p = dev->rep[REP_PERIOD];
- }
+ struct input_dev *dev = handle->dev;
+ struct kbd_repeat *rep = data;
+
+ if (test_bit(EV_REP, dev->evbit)) {
+
+ if (rep[0].delay > 0)
+ input_inject_event(handle,
+ EV_REP, REP_DELAY, rep[0].delay);
+ if (rep[0].period > 0)
+ input_inject_event(handle,
+ EV_REP, REP_PERIOD, rep[0].period);
+
+ rep[1].delay = dev->rep[REP_DELAY];
+ rep[1].period = dev->rep[REP_PERIOD];
}
- rep->delay = d;
- rep->period = p;
+
+ return 0;
+}
+
+int kbd_rate(struct kbd_repeat *rep)
+{
+ struct kbd_repeat data[2] = { *rep };
+
+ input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper);
+ *rep = data[1]; /* Copy currently used settings */
+
return 0;
}
@@ -997,36 +1010,36 @@ static inline unsigned char getleds(void)
return leds;
}
+static int kbd_update_leds_helper(struct input_handle *handle, void *data)
+{
+ unsigned char leds = *(unsigned char *)data;
+
+ if (test_bit(EV_LED, handle->dev->evbit)) {
+ input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
+ input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
+ input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
+ input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
+ }
+
+ return 0;
+}
+
/*
- * This routine is the bottom half of the keyboard interrupt
- * routine, and runs with all interrupts enabled. It does
- * console changing, led setting and copy_to_cooked, which can
- * take a reasonably long time.
- *
- * Aside from timing (which isn't really that important for
- * keyboard interrupts as they happen often), using the software
- * interrupt routines for this thing allows us to easily mask
- * this when we don't want any of the above to happen.
- * This allows for easy and efficient race-condition prevention
- * for kbd_start => input_inject_event(dev, EV_LED, ...) => ...
+ * This is the tasklet that updates LED state on all keyboards
+ * attached to the box. The reason we use tasklet is that we
+ * need to handle the scenario when keyboard handler is not
+ * registered yet but we already getting updates form VT to
+ * update led state.
*/
-
static void kbd_bh(unsigned long dummy)
{
- struct list_head *node;
unsigned char leds = getleds();
if (leds != ledstate) {
- list_for_each(node, &kbd_handler.h_list) {
- struct input_handle *handle = to_handle_h(node);
- input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
- input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
- input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
- input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
- }
+ input_handler_for_each_handle(&kbd_handler, &leds,
+ kbd_update_leds_helper);
+ ledstate = leds;
}
-
- ledstate = leds;
}
DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
@@ -1136,7 +1149,7 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char u
static void kbd_rawcode(unsigned char data)
{
struct vc_data *vc = vc_cons[fg_console].d;
- kbd = kbd_table + fg_console;
+ kbd = kbd_table + vc->vc_num;
if (kbd->kbdmode == VC_RAW)
put_queue(vc, data);
}
@@ -1157,7 +1170,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
tty->driver_data = vc;
}
- kbd = kbd_table + fg_console;
+ kbd = kbd_table + vc->vc_num;
if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
sysrq_alt = down ? keycode : 0;
@@ -1296,10 +1309,16 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
static void kbd_event(struct input_handle *handle, unsigned int event_type,
unsigned int event_code, int value)
{
+ /* We are called with interrupts disabled, just take the lock */
+ spin_lock(&kbd_event_lock);
+
if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
kbd_rawcode(value);
if (event_type == EV_KEY)
kbd_keycode(event_code, value, HW_RAW(handle->dev));
+
+ spin_unlock(&kbd_event_lock);
+
tasklet_schedule(&keyboard_tasklet);
do_poke_blanked_console = 1;
schedule_console_callback();
@@ -1363,15 +1382,11 @@ static void kbd_disconnect(struct input_handle *handle)
*/
static void kbd_start(struct input_handle *handle)
{
- unsigned char leds = ledstate;
-
tasklet_disable(&keyboard_tasklet);
- if (leds != 0xff) {
- input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
- input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
- input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
- input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
- }
+
+ if (ledstate != 0xff)
+ kbd_update_leds_helper(handle, &ledstate);
+
tasklet_enable(&keyboard_tasklet);
}
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index a074fceb67d..30eff80fed6 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -5,7 +5,7 @@
*
* Added devfs support.
* Jan-11-1998, C. Scott Ananian <cananian@alumni.princeton.edu>
- * Shared /dev/zero mmaping support, Feb 2000, Kanoj Sarcar <kanoj@sgi.com>
+ * Shared /dev/zero mmapping support, Feb 2000, Kanoj Sarcar <kanoj@sgi.com>
*/
#include <linux/mm.h>
@@ -26,7 +26,6 @@
#include <linux/bootmem.h>
#include <linux/splice.h>
#include <linux/pfn.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -892,29 +891,23 @@ static int memory_open(struct inode *inode, struct file *filp)
{
int minor;
const struct memdev *dev;
- int ret = -ENXIO;
-
- lock_kernel();
minor = iminor(inode);
if (minor >= ARRAY_SIZE(devlist))
- goto out;
+ return -ENXIO;
dev = &devlist[minor];
if (!dev->fops)
- goto out;
+ return -ENXIO;
filp->f_op = dev->fops;
if (dev->dev_info)
filp->f_mapping->backing_dev_info = dev->dev_info;
if (dev->fops->open)
- ret = dev->fops->open(inode, filp);
- else
- ret = 0;
-out:
- unlock_kernel();
- return ret;
+ return dev->fops->open(inode, filp);
+
+ return 0;
}
static const struct file_operations memory_fops = {
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 07fa612a58d..96f1cd086dd 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -49,7 +49,6 @@
#include <linux/device.h>
#include <linux/tty.h>
#include <linux/kmod.h>
-#include <linux/smp_lock.h>
/*
* Head entry for the doubly linked miscdevice list
@@ -118,8 +117,7 @@ static int misc_open(struct inode * inode, struct file * file)
struct miscdevice *c;
int err = -ENODEV;
const struct file_operations *old_fops, *new_fops = NULL;
-
- lock_kernel();
+
mutex_lock(&misc_mtx);
list_for_each_entry(c, &misc_list, list) {
@@ -157,7 +155,6 @@ static int misc_open(struct inode * inode, struct file * file)
fops_put(old_fops);
fail:
mutex_unlock(&misc_mtx);
- unlock_kernel();
return err;
}
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
index 1997270bb6f..ecb89d798e3 100644
--- a/drivers/char/mspec.c
+++ b/drivers/char/mspec.c
@@ -248,7 +248,7 @@ static const struct vm_operations_struct mspec_vm_ops = {
/*
* mspec_mmap
*
- * Called when mmaping the device. Initializes the vma with a fault handler
+ * Called when mmapping the device. Initializes the vma with a fault handler
* and private data structure necessary to allocate, track, and free the
* underlying pages.
*/
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index 6934025a1ac..c1d8b54c816 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -602,7 +602,7 @@ static void receive_char(struct r3964_info *pInfo, const unsigned char c)
}
break;
case R3964_WAIT_FOR_RX_REPEAT:
- /* FALLTROUGH */
+ /* FALLTHROUGH */
case R3964_IDLE:
if (c == STX) {
/* Prevent rx_queue from overflow: */
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 88cee4099be..4008e2ce73c 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -38,7 +38,6 @@
#define NVRAM_VERSION "1.3"
#include <linux/module.h>
-#include <linux/smp_lock.h>
#include <linux/nvram.h>
#define PC 1
@@ -111,6 +110,7 @@
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/uaccess.h>
+#include <linux/smp_lock.h>
#include <asm/system.h>
@@ -214,7 +214,6 @@ void nvram_set_checksum(void)
static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
{
- lock_kernel();
switch (origin) {
case 0:
/* nothing to do */
@@ -226,7 +225,7 @@ static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
offset += NVRAM_BYTES;
break;
}
- unlock_kernel();
+
return (offset >= 0) ? (file->f_pos = offset) : -EINVAL;
}
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c
index 3f7da8cf3a8..8ecbcc174c1 100644
--- a/drivers/char/pc8736x_gpio.c
+++ b/drivers/char/pc8736x_gpio.c
@@ -20,7 +20,6 @@
#include <linux/mutex.h>
#include <linux/nsc_gpio.h>
#include <linux/platform_device.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#define DEVNAME "pc8736x_gpio"
@@ -223,7 +222,6 @@ static int pc8736x_gpio_open(struct inode *inode, struct file *file)
unsigned m = iminor(inode);
file->private_data = &pc8736x_gpio_ops;
- cycle_kernel_lock();
dev_dbg(&pdev->dev, "open %d\n", m);
if (m >= PC8736X_GPIO_CT)
diff --git a/drivers/char/rio/route.h b/drivers/char/rio/route.h
index 20ed73f3fd7..46e963771c3 100644
--- a/drivers/char/rio/route.h
+++ b/drivers/char/rio/route.h
@@ -67,7 +67,7 @@
typedef struct COST_ROUTE COST_ROUTE;
struct COST_ROUTE {
unsigned char cost; /* Cost down this link */
- unsigned char route[NODE_BYTES]; /* Nodes thorough this route */
+ unsigned char route[NODE_BYTES]; /* Nodes through this route */
};
typedef struct ROUTE_STR ROUTE_STR;
diff --git a/drivers/char/scx200_gpio.c b/drivers/char/scx200_gpio.c
index 1d9100561c8..99e5272e3c5 100644
--- a/drivers/char/scx200_gpio.c
+++ b/drivers/char/scx200_gpio.c
@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -52,7 +51,6 @@ static int scx200_gpio_open(struct inode *inode, struct file *file)
unsigned m = iminor(inode);
file->private_data = &scx200_gpio_ops;
- cycle_kernel_lock();
if (m >= MAX_PINS)
return -EINVAL;
return nonseekable_open(inode, file);
diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c
index b3ec9b10e29..cad4eb65f13 100644
--- a/drivers/char/tb0219.c
+++ b/drivers/char/tb0219.c
@@ -21,7 +21,6 @@
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/smp_lock.h>
#include <asm/io.h>
#include <asm/reboot.h>
@@ -38,7 +37,7 @@ MODULE_PARM_DESC(major, "Major device number");
static void (*old_machine_restart)(char *command);
static void __iomem *tb0219_base;
-static spinlock_t tb0219_lock;
+static DEFINE_SPINLOCK(tb0219_lock);
#define tb0219_read(offset) readw(tb0219_base + (offset))
#define tb0219_write(offset, value) writew((value), tb0219_base + (offset))
@@ -237,7 +236,6 @@ static int tanbac_tb0219_open(struct inode *inode, struct file *file)
{
unsigned int minor;
- cycle_kernel_lock();
minor = iminor(inode);
switch (minor) {
case 0:
@@ -306,8 +304,6 @@ static int __devinit tb0219_probe(struct platform_device *dev)
return retval;
}
- spin_lock_init(&tb0219_lock);
-
old_machine_restart = _machine_restart;
_machine_restart = tb0219_restart;
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index 8e67d5c642a..6bd5f8866c7 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -315,7 +315,7 @@ EXPORT_SYMBOL(tty_termios_input_baud_rate);
* For maximal back compatibility with legacy SYS5/POSIX *nix behaviour
* we need to carefully set the bits when the user does not get the
* desired speed. We allow small margins and preserve as much of possible
- * of the input intent to keep compatiblity.
+ * of the input intent to keep compatibility.
*
* Locking: Caller should hold termios lock. This is already held
* when calling this function from the driver termios handler.
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 20:34:10 +0000