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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 10:49:54 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 10:49:54 -0700 |
commit | c37927d4359e81b85de644f8fb08878717cf5f3f (patch) | |
tree | 25dabf2d905e1410819d1bdaba0bf5f779100d3c /drivers/misc/phantom.c | |
parent | 5704e44d283e907623e3775c1262f206a2c48cf3 (diff) | |
parent | 2a48fc0ab24241755dc93bfd4f01d68efab47f5a (diff) | |
download | linux-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/misc/phantom.c')
-rw-r--r-- | drivers/misc/phantom.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index 75ee0d3f6f45..3712e5077e25 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -24,7 +24,7 @@ #include <linux/slab.h> #include <linux/phantom.h> #include <linux/sched.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <asm/atomic.h> #include <asm/io.h> @@ -38,6 +38,7 @@ #define PHB_RUNNING 1 #define PHB_NOT_OH 2 +static DEFINE_MUTEX(phantom_mutex); static struct class *phantom_class; static int phantom_major; @@ -215,17 +216,17 @@ static int phantom_open(struct inode *inode, struct file *file) struct phantom_device *dev = container_of(inode->i_cdev, struct phantom_device, cdev); - lock_kernel(); + mutex_lock(&phantom_mutex); nonseekable_open(inode, file); if (mutex_lock_interruptible(&dev->open_lock)) { - unlock_kernel(); + mutex_unlock(&phantom_mutex); return -ERESTARTSYS; } if (dev->opened) { mutex_unlock(&dev->open_lock); - unlock_kernel(); + mutex_unlock(&phantom_mutex); return -EINVAL; } @@ -236,7 +237,7 @@ static int phantom_open(struct inode *inode, struct file *file) atomic_set(&dev->counter, 0); dev->opened++; mutex_unlock(&dev->open_lock); - unlock_kernel(); + mutex_unlock(&phantom_mutex); return 0; } |