Don't let ast_channel_alloc fail if explicitly passed NULL cid_name or cid_number.

This also fixes a small memory leak.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@187680 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/channel.c

@@ -796,11 +796,22 @@ struct ast_channel *ast_channel_alloc(int needqueue, int state, const char *cid_
 		return NULL;
 	}
 
-	if (!(tmp->cid.cid_name = ast_strdup(cid_name)) || !(tmp->cid.cid_num = ast_strdup(cid_num))) {
-		ast_string_field_free_memory(tmp);
-		sched_context_destroy(tmp->sched);
-		ast_free(tmp);
-		return NULL;
+	if (cid_name) {
+		if (!(tmp->cid.cid_name = ast_strdup(cid_name))) {
+			ast_string_field_free_memory(tmp);
+			sched_context_destroy(tmp->sched);
+			ast_free(tmp);
+			return NULL;
+		}
+	}
+	if (cid_num) {
+		if (!(tmp->cid.cid_num = ast_strdup(cid_num))) {
+			ast_string_field_free_memory(tmp);
+			sched_context_destroy(tmp->sched);
+			ast_free(tmp->cid.cid_name);
+			ast_free(tmp);
+			return NULL;
+		}
 	}
 
 #ifdef HAVE_EPOLL