--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -976,6 +976,9 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
 		       GFS2_LOG_HEAD_FLUSH_NORMAL | GFS2_LFC_DO_SYNC);
 out:
 	gfs2_qa_put(ip);
+	for (x = 0; x < num_qd; x++) 
+		BUG_ON(!qda[x]);
+
 	return error;
 }