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path: root/drivers/memstick/core/mspro_block.c
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Diffstat (limited to 'drivers/memstick/core/mspro_block.c')
-rw-r--r--drivers/memstick/core/mspro_block.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index d3f1a087eced..02362eccc588 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -18,11 +18,12 @@
#include <linux/kthread.h>
#include <linux/delay.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/memstick.h>
#define DRIVER_NAME "mspro_block"
+static DEFINE_MUTEX(mspro_block_mutex);
static int major;
module_param(major, int, 0644);
@@ -180,7 +181,7 @@ static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode)
struct mspro_block_data *msb = disk->private_data;
int rc = -ENXIO;
- lock_kernel();
+ mutex_lock(&mspro_block_mutex);
mutex_lock(&mspro_block_disk_lock);
if (msb && msb->card) {
@@ -192,7 +193,7 @@ static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode)
}
mutex_unlock(&mspro_block_disk_lock);
- unlock_kernel();
+ mutex_unlock(&mspro_block_mutex);
return rc;
}
@@ -225,9 +226,9 @@ static int mspro_block_disk_release(struct gendisk *disk)
static int mspro_block_bd_release(struct gendisk *disk, fmode_t mode)
{
int ret;
- lock_kernel();
+ mutex_lock(&mspro_block_mutex);
ret = mspro_block_disk_release(disk);
- unlock_kernel();
+ mutex_unlock(&mspro_block_mutex);
return ret;
}