screenshooter: Add a missing return; in an error path
diff --git a/src/screenshooter.c b/src/screenshooter.c
index 9ae0d29..4403933 100644
--- a/src/screenshooter.c
+++ b/src/screenshooter.c
@@ -265,6 +265,7 @@
 	if (client != shooter->client) {
 		wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
 				       "screenshooter failed: permission denied");
+		return;
 	}
 
 	wl_resource_set_implementation(resource, &screenshooter_implementation,