utils: show help blurb when run without any arguments

[elogind.git] / src / loopback-setup.c

diff --git a/src/loopback-setup.c b/src/loopback-setup.c
index e37bf4190bd010d2207130952d48d447f6f80b05..74a1286807f8f7c69133bf1e8ac6ce1c96830f58 100644 (file)
--- a/src/loopback-setup.c
+++ b/src/loopback-setup.c
@@ -217,8 +217,10 @@ static int read_response(int fd) {
 
         nlmsgerr = NLMSG_DATA(&response.header);
 
-        if (nlmsgerr->error < 0 && nlmsgerr->error != -EEXIST)
+        if (nlmsgerr->error < 0 && nlmsgerr->error != -EEXIST) {
+                log_warning("Netlink failure for request %i: %s", response.header.nlmsg_seq, strerror(-nlmsgerr->error));
                 return nlmsgerr->error;
+        }
 
         return response.header.nlmsg_seq;
 }