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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/rtc
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/rtc')
-rw-r--r--drivers/rtc/rtc-m41t80.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index d60557cae8ef..512dca16a42c 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -20,7 +20,7 @@
20#include <linux/module.h> 20#include <linux/module.h>
21#include <linux/rtc.h> 21#include <linux/rtc.h>
22#include <linux/slab.h> 22#include <linux/slab.h>
23#include <linux/smp_lock.h> 23#include <linux/mutex.h>
24#include <linux/string.h> 24#include <linux/string.h>
25#ifdef CONFIG_RTC_DRV_M41T80_WDT 25#ifdef CONFIG_RTC_DRV_M41T80_WDT
26#include <linux/fs.h> 26#include <linux/fs.h>
@@ -68,6 +68,7 @@
68 68
69#define DRV_VERSION "0.05" 69#define DRV_VERSION "0.05"
70 70
71static DEFINE_MUTEX(m41t80_rtc_mutex);
71static const struct i2c_device_id m41t80_id[] = { 72static const struct i2c_device_id m41t80_id[] = {
72 { "m41t62", M41T80_FEATURE_SQ | M41T80_FEATURE_SQ_ALT }, 73 { "m41t62", M41T80_FEATURE_SQ | M41T80_FEATURE_SQ_ALT },
73 { "m41t65", M41T80_FEATURE_HT | M41T80_FEATURE_WD }, 74 { "m41t65", M41T80_FEATURE_HT | M41T80_FEATURE_WD },
@@ -677,9 +678,9 @@ static long wdt_unlocked_ioctl(struct file *file, unsigned int cmd,
677{ 678{
678 int ret; 679 int ret;
679 680
680 lock_kernel(); 681 mutex_lock(&m41t80_rtc_mutex);
681 ret = wdt_ioctl(file, cmd, arg); 682 ret = wdt_ioctl(file, cmd, arg);
682 unlock_kernel(); 683 mutex_unlock(&m41t80_rtc_mutex);
683 684
684 return ret; 685 return ret;
685} 686}
@@ -693,16 +694,16 @@ static long wdt_unlocked_ioctl(struct file *file, unsigned int cmd,
693static int wdt_open(struct inode *inode, struct file *file) 694static int wdt_open(struct inode *inode, struct file *file)
694{ 695{
695 if (MINOR(inode->i_rdev) == WATCHDOG_MINOR) { 696 if (MINOR(inode->i_rdev) == WATCHDOG_MINOR) {
696 lock_kernel(); 697 mutex_lock(&m41t80_rtc_mutex);
697 if (test_and_set_bit(0, &wdt_is_open)) { 698 if (test_and_set_bit(0, &wdt_is_open)) {
698 unlock_kernel(); 699 mutex_unlock(&m41t80_rtc_mutex);
699 return -EBUSY; 700 return -EBUSY;
700 } 701 }
701 /* 702 /*
702 * Activate 703 * Activate
703 */ 704 */
704 wdt_is_open = 1; 705 wdt_is_open = 1;
705 unlock_kernel(); 706 mutex_unlock(&m41t80_rtc_mutex);
706 return nonseekable_open(inode, file); 707 return nonseekable_open(inode, file);
707 } 708 }
708 return -ENODEV; 709 return -ENODEV;