lib: add oom handling to xbps_pkgdb_foreach_cb_multi

Author: Duncaen

lib/pkgdb.c

@@ -398,16 +398,17 @@ xbps_pkgdb_foreach_cb_multi(struct xbps_handle *xhp,
 		void *arg)
 {
 	xbps_array_t allkeys;
-	int rv;
+	int r;
 
-	if ((rv = xbps_pkgdb_init(xhp)) != 0)
-		return rv;
+	assert(xhp->pkgdb);
 
 	allkeys = xbps_dictionary_all_keys(xhp->pkgdb);
-	assert(allkeys);
-	rv = xbps_array_foreach_cb_multi(xhp, allkeys, xhp->pkgdb, fn, arg);
+	if (!allkeys)
+		return xbps_error_oom();
+
+	r = xbps_array_foreach_cb_multi(xhp, allkeys, xhp->pkgdb, fn, arg);
 	xbps_object_release(allkeys);
-	return rv;
+	return r;
 }
 
 xbps_dictionary_t