--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -450,7 +450,7 @@ static int qd_check_sync(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd,
 
 static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 {
-	struct gfs2_quota_data *qd = NULL, *iter;
+	struct gfs2_quota_data *qd = NULL, *iter = NULL;
 	int error;
 
 	*qdp = NULL;
@@ -952,8 +952,11 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
 		qd = qda[x];
 		offset = qd2offset(qd);
 		error = gfs2_adjust_quota(ip, offset, qd->qd_change_sync, qd, NULL);
-		if (error)
+		if (error) {
+			if (!qd)
+				fs_info(sdp, "err: %d, qda[%d]", error, x);
 			goto out_end_trans;
+		}
 
 		do_qc(qd, -qd->qd_change_sync);
 		set_bit(QDF_REFRESH, &qd->qd_flags);