core/cgroup: no need to handle empty bind_network_interface

We always normalize empty setting to NULL, hence per our usual
coding style a simply NULL check would suffice.

diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index a9dde6ce9d2a13e3a5cf56ab1da4fbc6d0e3ada5..89257724379451216258f20739f0de45662e1f79 100644 (file)
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -571,7 +571,7 @@ void cgroup_context_dump(Unit *u, FILE* f, const char *prefix) {
                 fprintf(f, "%sDelegateSubgroup: %s\n",
                         prefix, c->delegate_subgroup);
 
-        if (!isempty(c->bind_network_interface))
+        if (c->bind_network_interface)
                 fprintf(f, "%sBindNetworkInterface: %s\n",
                         prefix, c->bind_network_interface);
 
@@ -1698,7 +1698,7 @@ static bool unit_get_needs_bind_network_interface(Unit *u) {
         if (!c)
                 return false;
 
-        return !isempty(c->bind_network_interface);
+        return c->bind_network_interface;
 }
 
 static CGroupMask unit_get_cgroup_mask(Unit *u) {