fixes from HEAD

servers/slapd/back-ldbm/compare.c

@@ -107,7 +107,7 @@ ldbm_back_compare(
 	}
 
 return_results:;
-	cache_return_entry_r( &li->li_cache, e );
+	if ( e ) cache_return_entry_r( &li->li_cache, e );
 	ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
 
 	send_ldap_result( op, rs );

servers/slapd/back-ldbm/idl.c

@@ -112,6 +112,7 @@ idl_allids( Backend *be )
 	idl = idl_alloc( 0 );
 	ID_BLOCK_NMAX(idl) = ID_BLOCK_ALLIDS_VALUE;
 	if ( next_id_get( be, &id ) ) {
+		idl_free( idl );
 		return NULL;
 	}
 	ID_BLOCK_NIDS(idl) = id;

servers/slapd/back-ldbm/modify.c

@@ -259,7 +259,7 @@ ldbm_back_modify(
 			cache_return_entry_r( &li->li_cache, matched );
 		} else {
 			rs->sr_ref = referral_rewrite( default_referral, NULL,
-						&op->o_req_dn, LDAP_SCOPE_DEFAULT );
+				&op->o_req_dn, LDAP_SCOPE_DEFAULT );
 		}
 
 		rs->sr_err = LDAP_REFERRAL;
@@ -267,8 +267,7 @@ ldbm_back_modify(
 		goto return_results;
 	}
 
-	if ( !manageDSAit && is_entry_referral( e ) )
-	{
+	if ( !manageDSAit && is_entry_referral( e ) ) {
 		/* parent is a referral, don't allow add */
 		/* parent is an alias, don't allow add */
 		rs->sr_ref = get_entry_referrals( op, e );
@@ -295,7 +294,7 @@ ldbm_back_modify(
 	}
 
 return_results:;
-	cache_return_entry_w( &li->li_cache, e );
+	if( e != NULL ) cache_return_entry_w( &li->li_cache, e );
 	ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 	send_ldap_result( op, rs );