minor code simplification

lib/dns/zone.c

@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: zone.c,v 1.606 2011/05/19 04:28:33 each Exp $ */
+/* $Id: zone.c,v 1.607 2011/05/19 04:33:17 each Exp $ */
 
 /*! \file */
 
@@ -5007,6 +5007,8 @@ zone_resigninc(dns_zone_t *zone) {
 	while (result == ISC_R_SUCCESS) {
 		resign = rdataset.resign;
 		covers = rdataset.covers;
+		dns_rdataset_disassociate(&rdataset);
+
 		/*
 		 * Stop if we hit the SOA as that means we have walked the
 		 * entire zone.  The SOA record should always be the most
@@ -5014,12 +5016,8 @@ zone_resigninc(dns_zone_t *zone) {
 		 */
 		/* XXXMPA increase number of RRsets signed pre call */
 		if (covers == dns_rdatatype_soa || i++ > zone->signatures ||
-		    resign > stop) {
-			dns_rdataset_disassociate(&rdataset);
+		    resign > stop)
 			break;
-		}
-
-		dns_rdataset_disassociate(&rdataset);
 
 		result = del_sigs(zone, db, version, name, covers, &sig_diff,
 				  zone_keys, nkeys, now);