[GFS2] Add brackets in locking/dlm/sysfs.c

As per Jan Engelhardt's request.

Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c
index 82bef01..c1237a91 100644
--- a/fs/gfs2/locking/dlm/sysfs.c
+++ b/fs/gfs2/locking/dlm/sysfs.c
@@ -42,8 +42,9 @@
 	else if (val == 0) {
 		clear_bit(DFL_BLOCK_LOCKS, &ls->flags);
 		gdlm_submit_delayed(ls);
-	} else
+	} else {
 		ret = -EINVAL;
+	}
 	return ret;
 }