Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/fsl-dspi', 'spi/topic/fsl...

[deliverable/linux.git] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index e17bdbdfe9b1cf17e721203f8942c127df742fcf..08ae99343d92f91586b49fbf56367906855415ff 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -249,7 +249,8 @@ struct super_block *freeze_bdev(struct block_device *bdev)
                 * thaw_bdev drops it.
                 */
                sb = get_super(bdev);
-               drop_super(sb);
+               if (sb)
+                       drop_super(sb);
                mutex_unlock(&bdev->bd_fsfreeze_mutex);
                return sb;
        }