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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 10:49:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 10:49:54 -0700
commitc37927d4359e81b85de644f8fb08878717cf5f3f (patch)
tree25dabf2d905e1410819d1bdaba0bf5f779100d3c /drivers/watchdog
parent5704e44d283e907623e3775c1262f206a2c48cf3 (diff)
parent2a48fc0ab24241755dc93bfd4f01d68efab47f5a (diff)
downloadlinux-c37927d4359e81b85de644f8fb08878717cf5f3f.tar.bz2
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/watchdog')
-rw-r--r--drivers/watchdog/cpwd.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 566343b3c131..b7d96e6236a1 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -25,7 +25,7 @@
#include <linux/ioport.h>
#include <linux/timer.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -89,6 +89,7 @@ struct cpwd {
} devs[WD_NUMDEVS];
};
+static DEFINE_MUTEX(cpwd_mutex);
static struct cpwd *cpwd_device;
/* Sun uses Altera PLD EPF8820ATC144-4
@@ -368,7 +369,7 @@ static int cpwd_open(struct inode *inode, struct file *f)
{
struct cpwd *p = cpwd_device;
- lock_kernel();
+ mutex_lock(&cpwd_mutex);
switch (iminor(inode)) {
case WD0_MINOR:
case WD1_MINOR:
@@ -376,7 +377,7 @@ static int cpwd_open(struct inode *inode, struct file *f)
break;
default:
- unlock_kernel();
+ mutex_unlock(&cpwd_mutex);
return -ENODEV;
}
@@ -386,13 +387,13 @@ static int cpwd_open(struct inode *inode, struct file *f)
IRQF_SHARED, DRIVER_NAME, p)) {
printk(KERN_ERR PFX "Cannot register IRQ %d\n",
p->irq);
- unlock_kernel();
+ mutex_unlock(&cpwd_mutex);
return -EBUSY;
}
p->initialized = true;
}
- unlock_kernel();
+ mutex_unlock(&cpwd_mutex);
return nonseekable_open(inode, f);
}
@@ -482,9 +483,9 @@ static long cpwd_compat_ioctl(struct file *file, unsigned int cmd,
case WIOCSTART:
case WIOCSTOP:
case WIOCGSTAT:
- lock_kernel();
+ mutex_lock(&cpwd_mutex);
rval = cpwd_ioctl(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&cpwd_mutex);
break;
/* everything else is handled by the generic compat layer */