dpms: add null checking of 'dpms->res' variable

dpms->res could be null if no client binds to dpms interface

Change-Id: I4bb631903190ed9a892857b24ea0eb4776b341c5

diff --git a/src/dpms/dpms.c b/src/dpms/dpms.c
index 833005f..cec0dc2 100644 (file)
--- a/src/dpms/dpms.c
+++ b/src/dpms/dpms.c
@@ -110,7 +110,8 @@ dpms_handle_display_destroy(struct wl_listener *listener, void *data)
 
     wl_signal_emit(&dpms->events.destroy, dpms);
     wl_list_remove(&dpms->destroy.link);
-    wl_resource_set_user_data(dpms->res, NULL);
+    if (dpms->res)
+        wl_resource_set_user_data(dpms->res, NULL);
     wl_global_destroy(dpms->global);
     free(dpms);
 }