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[PATCH] sem2mutex: drivers/char/ 

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-03-23 03:00:27 -08:00 committed by Linus Torvalds
parent b1c82b5c55
commit 6f87f0deeb
4 changed files with 10 additions and 10 deletions
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1
drivers/char/istallion.c
View File

@ -181,7 +181,6 @@ static struct tty_driver *stli_serial;
* is already swapping a shared buffer won't make things any worse.
*/
static char *stli_tmpwritebuf;
static DECLARE_MUTEX(stli_tmpwritesem);
#define STLI_TXBUFSIZE 4096

11
drivers/char/nwflash.c
View File

@ -27,6 +27,7 @@
#include <linux/rwsem.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/mutex.h>
#include <asm/hardware/dec21285.h>
#include <asm/io.h>
@ -56,7 +57,7 @@ static int gbWriteEnable;
static int gbWriteBase64Enable;
static volatile unsigned char *FLASH_BASE;
static int gbFlashSize = KFLASH_SIZE;
static DECLARE_MUTEX(nwflash_sem);
static DEFINE_MUTEX(nwflash_mutex);
extern spinlock_t gpio_lock;
@ -140,7 +141,7 @@ static ssize_t flash_read(struct file *file, char __user *buf, size_t size,
/*
* We now lock against reads and writes. --rmk
*/
if (down_interruptible(&nwflash_sem))
if (mutex_lock_interruptible(&nwflash_mutex))
return -ERESTARTSYS;
ret = copy_to_user(buf, (void *)(FLASH_BASE + p), count);
@ -149,7 +150,7 @@ static ssize_t flash_read(struct file *file, char __user *buf, size_t size,
*ppos += count;
} else
ret = -EFAULT;
up(&nwflash_sem);
mutex_unlock(&nwflash_mutex);
}
return ret;
}
@ -188,7 +189,7 @@ static ssize_t flash_write(struct file *file, const char __user *buf,
/*
* We now lock against reads and writes. --rmk
*/
if (down_interruptible(&nwflash_sem))
if (mutex_lock_interruptible(&nwflash_mutex))
return -ERESTARTSYS;
written = 0;
@ -277,7 +278,7 @@ static ssize_t flash_write(struct file *file, const char __user *buf,
*/
leds_event(led_release);
up(&nwflash_sem);
mutex_unlock(&nwflash_mutex);
return written;
}

1
drivers/char/stallion.c
View File

@ -148,7 +148,6 @@ static struct tty_driver *stl_serial;
* is already swapping a shared buffer won't make things any worse.
*/
static char *stl_tmpwritebuf;
static DECLARE_MUTEX(stl_tmpwritesem);
/*
* Define a local default termios struct. All ports will be created

7
drivers/char/watchdog/pcwd_usb.c
View File

@ -42,6 +42,7 @@
#include <linux/completion.h>
#include <asm/uaccess.h>
#include <linux/usb.h>
#include <linux/mutex.h>
#ifdef CONFIG_USB_DEBUG
@ -143,7 +144,7 @@ struct usb_pcwd_private {
static struct usb_pcwd_private *usb_pcwd_device;
/* prevent races between open() and disconnect() */
static DECLARE_MUTEX (disconnect_sem);
static DEFINE_MUTEX(disconnect_mutex);
/* local function prototypes */
static int usb_pcwd_probe (struct usb_interface *interface, const struct usb_device_id *id);
@ -723,7 +724,7 @@ static void usb_pcwd_disconnect(struct usb_interface *interface)
struct usb_pcwd_private *usb_pcwd;
/* prevent races with open() */
down (&disconnect_sem);
mutex_lock(&disconnect_mutex);
usb_pcwd = usb_get_intfdata (interface);
usb_set_intfdata (interface, NULL);
@ -749,7 +750,7 @@ static void usb_pcwd_disconnect(struct usb_interface *interface)
cards_found--;
up (&disconnect_sem);
mutex_unlock(&disconnect_mutex);
printk(KERN_INFO PFX "USB PC Watchdog disconnected\n");
}