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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 13:49:54 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 13:49:54 -0400
commitc37927d4359e81b85de644f8fb08878717cf5f3f (patch)
tree25dabf2d905e1410819d1bdaba0bf5f779100d3c /drivers/char/generic_nvram.c
parent5704e44d283e907623e3775c1262f206a2c48cf3 (diff)
parent2a48fc0ab24241755dc93bfd4f01d68efab47f5a (diff)
Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: block: autoconvert trivial BKL users to private mutex drivers: autoconvert trivial BKL users to private mutex ipmi: autoconvert trivial BKL users to private mutex mac: autoconvert trivial BKL users to private mutex mtd: autoconvert trivial BKL users to private mutex scsi: autoconvert trivial BKL users to private mutex Fix up trivial conflicts (due to addition of private mutex right next to deletion of a version string) in drivers/char/pcmcia/cm40[04]0_cs.c
Diffstat (limited to 'drivers/char/generic_nvram.c')
-rw-r--r--drivers/char/generic_nvram.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c
index 82b5a88a82d7..0e941b57482e 100644
--- a/drivers/char/generic_nvram.c
+++ b/drivers/char/generic_nvram.c
@@ -19,7 +19,7 @@
19#include <linux/miscdevice.h> 19#include <linux/miscdevice.h>
20#include <linux/fcntl.h> 20#include <linux/fcntl.h>
21#include <linux/init.h> 21#include <linux/init.h>
22#include <linux/smp_lock.h> 22#include <linux/mutex.h>
23#include <asm/uaccess.h> 23#include <asm/uaccess.h>
24#include <asm/nvram.h> 24#include <asm/nvram.h>
25#ifdef CONFIG_PPC_PMAC 25#ifdef CONFIG_PPC_PMAC
@@ -28,6 +28,7 @@
28 28
29#define NVRAM_SIZE 8192 29#define NVRAM_SIZE 8192
30 30
31static DEFINE_MUTEX(nvram_mutex);
31static ssize_t nvram_len; 32static ssize_t nvram_len;
32 33
33static loff_t nvram_llseek(struct file *file, loff_t offset, int origin) 34static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
@@ -120,9 +121,9 @@ static long nvram_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned l
120{ 121{
121 int ret; 122 int ret;
122 123
123 lock_kernel(); 124 mutex_lock(&nvram_mutex);
124 ret = nvram_ioctl(file, cmd, arg); 125 ret = nvram_ioctl(file, cmd, arg);
125 unlock_kernel(); 126 mutex_unlock(&nvram_mutex);
126 127
127 return ret; 128 return ret;
128} 129}