From: Seungha Yang <seungha.yang@navercorp.com>
Date: Mon, 23 Dec 2019 06:17:07 +0000 (+0900)
Subject: vulkansink: Fix null pointer exception
X-Git-Tag: 1.19.3~507^2~2475
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b8ef3801bc4181784721f45e4dd9e569de9128c6;p=platform%2Fupstream%2Fgstreamer.git

vulkansink: Fix null pointer exception

context query might happen before creating swapper.
---

diff --git a/ext/vulkan/vksink.c b/ext/vulkan/vksink.c
index 3a09ebb..b7d2c27 100644
--- a/ext/vulkan/vksink.c
+++ b/ext/vulkan/vksink.c
@@ -231,7 +231,8 @@ gst_vulkan_sink_query (GstBaseSink * bsink, GstQuery * query)
       if (gst_vulkan_handle_context_query (GST_ELEMENT (vk_sink), query,
               vk_sink->display, vk_sink->instance, vk_sink->device))
         return TRUE;
-      if (gst_vulkan_queue_handle_context_query (GST_ELEMENT (vk_sink), query,
+      if (vk_sink->swapper &&
+          gst_vulkan_queue_handle_context_query (GST_ELEMENT (vk_sink), query,
               vk_sink->swapper->queue))
         return TRUE;