hotplug-dispatch: don't filter empty env variables

Empty environment variables are a valid case and are needed to
override (or remove) existing variables such as HOSTNAME.

Reported-by: Hartmut Birr <e9hack@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

diff --git a/hotplug-dispatch.c b/hotplug-dispatch.c
index f1ece3833f235d59b321d6d9bd89ea3ef621fcd9..47060852ea909bc2e389003d30722682bc492eda 100644 (file)
--- a/hotplug-dispatch.c
+++ b/hotplug-dispatch.c
@@ -241,9 +241,6 @@ static int hotplug_call(struct ubus_context *ctx, struct ubus_object *obj,
                        continue;
                *tmp = '=';
 
-               if (!strlen(++tmp))
-                       continue;
-
                if (!strcmp(enve, "ASYNC=0"))
                        async = false;