1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 1bb8bfcfdbd..aceb9647652 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1850,22 +1850,34 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
         return 0;
 }
 
+static int floppy_unlocked_open(struct block_device *bdev, fmode_t mode)
+{
+        int ret;
+
+        lock_kernel();
+        ret = floppy_open(bdev, mode);
+        unlock_kernel();
+
+        return ret;
+}
 
 static int floppy_release(struct gendisk *disk, fmode_t mode)
 {
         struct atari_floppy_struct *p = disk->private_data;
+        lock_kernel();
         if (p->ref < 0)
                 p->ref = 0;
         else if (!p->ref--) {
                 printk(KERN_ERR "floppy_release with fd_ref == 0");
                 p->ref = 0;
         }
+        unlock_kernel();
         return 0;
 }
 
 static const struct block_device_operations floppy_fops = {
         .owner          = THIS_MODULE,
-        .open           = floppy_open,
+        .open           = floppy_unlocked_open,
         .release        = floppy_release,
         .ioctl          = fd_ioctl,
         .media_changed  = check_floppy_change,