system-linux: fix system_rtnl_call() return code

diff --git a/system-linux.c b/system-linux.c
index 66799e9..5b217cf 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -243,10 +243,15 @@ handle_hotplug_event(struct uloop_fd *u, unsigned int events)
 
 static int system_rtnl_call(struct nl_msg *msg)
 {
-       int s = -(nl_send_auto_complete(sock_rtnl, msg)
-                       || nl_wait_for_ack(sock_rtnl));
+       int ret;
+
+       ret = nl_send_auto_complete(sock_rtnl, msg);
        nlmsg_free(msg);
-       return s;
+
+       if (ret < 0)
+               return ret;
+
+       return nl_wait_for_ack(sock_rtnl);
 }
 
 int system_bridge_delbr(struct device *bridge)