memstick: remove mspro_block_mutex

mspro_block_mutex is identical in scope to mspro_block_disk_lock and therefore
unnecessary.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 8 deletions

diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index a167938d4517..b11b2b89ae22 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -23,7 +23,6 @@
 
 #define DRIVER_NAME "mspro_block"
 
-static DEFINE_MUTEX(mspro_block_mutex);
 static int major;
 module_param(major, int, 0644);
 
@@ -181,7 +180,6 @@ static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode)
         struct mspro_block_data *msb = disk->private_data;
         int rc = -ENXIO;
 
-        mutex_lock(&mspro_block_mutex);
         mutex_lock(&mspro_block_disk_lock);
 
         if (msb && msb->card) {
@@ -193,7 +191,6 @@ static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode)
         }
 
         mutex_unlock(&mspro_block_disk_lock);
-        mutex_unlock(&mspro_block_mutex);
 
         return rc;
 }
@@ -225,11 +222,7 @@ static int mspro_block_disk_release(struct gendisk *disk)
 
 static int mspro_block_bd_release(struct gendisk *disk, fmode_t mode)
 {
-        int ret;
-        mutex_lock(&mspro_block_mutex);
-        ret = mspro_block_disk_release(disk);
-        mutex_unlock(&mspro_block_mutex);
-        return ret;
+        return mspro_block_disk_release(disk);
 }
 
 static int mspro_block_bd_getgeo(struct block_device *bdev,