diff --git a/[refs] b/[refs]
index ae730fad331a..3c8fda400f47 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a2b9d24eafd4785e5a07924cdb5a37867bda4620
+refs/heads/master: c4c58c583c1e21adc2b04316170c4fc355ab0123
diff --git a/trunk/drivers/staging/hv/blkvsc_drv.c b/trunk/drivers/staging/hv/blkvsc_drv.c
index 3060babedaba..bf8647e40897 100644
--- a/trunk/drivers/staging/hv/blkvsc_drv.c
+++ b/trunk/drivers/staging/hv/blkvsc_drv.c
@@ -255,20 +255,12 @@ static int blkvsc_open(struct block_device *bdev, fmode_t mode)
 {
 	struct block_device_context *blkdev = bdev->bd_disk->private_data;
 
-
-	mutex_lock(&blkvsc_mutex);
 	spin_lock(&blkdev->lock);
 
-	if (!blkdev->users && blkdev->device_type == DVD_TYPE) {
-		spin_unlock(&blkdev->lock);
-		check_disk_change(bdev);
-		spin_lock(&blkdev->lock);
-	}
-
 	blkdev->users++;
 
 	spin_unlock(&blkdev->lock);
-	mutex_unlock(&blkvsc_mutex);
+
 	return 0;
 }