From 33cb6e7934a57f508a164eb6d33a044efad75ab7 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 12 Dec 2013 22:17:38 +0100
Subject: [PATCH] bus: properly parse NameOwnerChanged messages when caller
 explicitly wants to match against names coming/going

---
 src/libsystemd-bus/bus-control.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libsystemd-bus/bus-control.c b/src/libsystemd-bus/bus-control.c
index db7263f6d..5125fd972 100644
--- a/src/libsystemd-bus/bus-control.c
+++ b/src/libsystemd-bus/bus-control.c
@@ -741,7 +741,7 @@ static int add_name_change_match(sd_bus *bus,
                         return 0;
         }
 
-        if (old_owner) {
+        if (!isempty(old_owner)) {
                 r = bus_kernel_parse_unique_name(old_owner, &old_owner_id);
                 if (r < 0)
                         return 0;
@@ -751,7 +751,7 @@ static int add_name_change_match(sd_bus *bus,
                         return 0;
         }
 
-        if (new_owner) {
+        if (!isempty(new_owner)) {
                 r = bus_kernel_parse_unique_name(new_owner, &new_owner_id);
                 if (r < 0)
                         return r;
-- 
2.30.2