bus-util: Log more information when connecting to a bus socket fails

Let's log about which bus we're trying to connect to and what transport
we're using to do it.

1 files changed, 4 insertions, 5 deletions

diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c
index 70fa260246..1dcd316cdb 100644
--- a/src/cgls/cgls.c
+++ b/src/cgls/cgls.c
@@ -221,13 +221,12 @@ static int run(int argc, char *argv[]) {
                                         return log_error_errno(r, "Failed to mangle unit name: %m");
 
                                 if (!bus) {
+                                        RuntimeScope scope = arg_show_unit == SHOW_UNIT_USER ? RUNTIME_SCOPE_USER : RUNTIME_SCOPE_SYSTEM;
+
                                         /* Connect to the bus only if necessary */
-                                        r = bus_connect_transport_systemd(
-                                                        BUS_TRANSPORT_LOCAL, NULL,
-                                                        arg_show_unit == SHOW_UNIT_USER ? RUNTIME_SCOPE_USER : RUNTIME_SCOPE_SYSTEM,
-                                                        &bus);
+                                        r = bus_connect_transport_systemd(BUS_TRANSPORT_LOCAL, NULL, scope, &bus);
                                         if (r < 0)
-                                                return bus_log_connect_error(r, BUS_TRANSPORT_LOCAL);
+                                                return bus_log_connect_error(r, BUS_TRANSPORT_LOCAL, scope);
                                 }
 
                                 q = show_cgroup_get_unit_path_and_warn(bus, unit_name, &cgroup);