backend-wayland: Fix using uninitialized data

Change-Id: Ia37e244b20dbc8f715d17c86ba92385571b5873f

diff --git a/src/backend/wayland/output.c b/src/backend/wayland/output.c
index 7728abf..a5b7c12 100644 (file)
--- a/src/backend/wayland/output.c
+++ b/src/backend/wayland/output.c
@@ -229,6 +229,12 @@ create_wl_buffer(struct ds_wl_backend *backend, struct ds_buffer *ds_buffer)
     if (ds_buffer_get_shm(ds_buffer, &shm)) {
         wl_buffer = import_shm(backend, &shm);
     }
+    else {
+        return NULL;
+    }
+
+    if (!wl_buffer)
+        return NULL;
 
     buffer = calloc(1, sizeof *buffer);
     if (!buffer) {