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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/char/apm-emulation.c
parent5704e44d283e907623e3775c1262f206a2c48cf3 (diff)
parent2a48fc0ab24241755dc93bfd4f01d68efab47f5a (diff)
downloadblackbird-op-linux-c37927d4359e81b85de644f8fb08878717cf5f3f.tar.gz
blackbird-op-linux-c37927d4359e81b85de644f8fb08878717cf5f3f.zip
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/apm-emulation.c')
-rw-r--r--drivers/char/apm-emulation.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index 033e1505fca9..6a420baea268 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -13,7 +13,7 @@
#include <linux/module.h>
#include <linux/poll.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/miscdevice.h>
@@ -126,6 +126,7 @@ struct apm_user {
/*
* Local variables
*/
+static DEFINE_MUTEX(apm_mutex);
static atomic_t suspend_acks_pending = ATOMIC_INIT(0);
static atomic_t userspace_notification_inhibit = ATOMIC_INIT(0);
static int apm_disabled;
@@ -274,7 +275,7 @@ apm_ioctl(struct file *filp, u_int cmd, u_long arg)
if (!as->suser || !as->writer)
return -EPERM;
- lock_kernel();
+ mutex_lock(&apm_mutex);
switch (cmd) {
case APM_IOC_SUSPEND:
mutex_lock(&state_lock);
@@ -335,7 +336,7 @@ apm_ioctl(struct file *filp, u_int cmd, u_long arg)
mutex_unlock(&state_lock);
break;
}
- unlock_kernel();
+ mutex_unlock(&apm_mutex);
return err;
}
@@ -370,7 +371,7 @@ static int apm_open(struct inode * inode, struct file * filp)
{
struct apm_user *as;
- lock_kernel();
+ mutex_lock(&apm_mutex);
as = kzalloc(sizeof(*as), GFP_KERNEL);
if (as) {
/*
@@ -390,7 +391,7 @@ static int apm_open(struct inode * inode, struct file * filp)
filp->private_data = as;
}
- unlock_kernel();
+ mutex_unlock(&apm_mutex);
return as ? 0 : -ENOMEM;
}
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