[GFS2] Add back missing BUG()

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 7cd9e25..2fc1102 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -32,6 +32,7 @@
 {
 	printk(KERN_EMERG "GFS2: fsid=%s: fatal assertion failed\n",
 	       sdp->sd_fsname);
+	BUG();
 }
 
 /**