If the dnsmasq process forks to handle TCP connections, it closes the ubus
context. But instead of changing the daemon wide pointer to NULL, only the
local variable was adjusted - and this portion of the code was even dropped
(dead store) by some optimizing compilers.
It makes more sense to change the daemon->ubus pointer because various
functions are already checking it for NULL. It is also the behavior which
ubus_destroy() implements.
Fixes: d8b33dad0bb7 ("dnsmasq: add support for monitoring and modifying dns lookup results via ubus")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
+ return;
+
+ ubus_free(ubus);
-+ ubus = NULL;
++ daemon->ubus = NULL;
+}
+
static int ubus_handle_metrics(struct ubus_context *ctx, struct ubus_object *obj,