ocfs2: Don't check for NULL before brelse()

This is pointless as brelse() already does the check.

Signed-off-by: Mark Fasheh
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index d2027ce..304b63a 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -762,8 +762,7 @@
 	return status;
 
 read_super_error:
-	if (bh != NULL)
-		brelse(bh);
+	brelse(bh);
 
 	if (inode)
 		iput(inode);