Torge Matthies : winegstreamer: Ignore an assert in wg_parser.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 62d8d3415cefc95b34afba7a52d32d730d3b7585
URL:    https://gitlab.winehq.org/wine/wine/-/commit/62d8d3415cefc95b34afba7a52d32d7...

Author: Torge Matthies 
Date:   Tue Mar 19 04:06:37 2024 +0100

winegstreamer: Ignore an assert in wg_parser.

This gets hit when a wg_parser receives GST_EVENT_FLUSH_START between the wg_parser_stream_get_buffer function return
and the wg_parser_stream_release_buffer call. In this case the NULL buffer can be ignored, it does no harm and there
is no memory leak from this.

---

dlls/winegstreamer/wg_parser.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/dlls/winegstreamer/wg_parser.c b/dlls/winegstreamer/wg_parser.c
index b942273d02b..7253013b6a3 100644
--- a/dlls/winegstreamer/wg_parser.c
+++ b/dlls/winegstreamer/wg_parser.c
@@ -412,11 +412,12 @@ static NTSTATUS wg_parser_stream_release_buffer(void *args)

pthread_mutex_lock(&parser->mutex);

-    assert(stream->buffer);
-
-    gst_buffer_unmap(stream->buffer, &stream->map_info);
-    gst_buffer_unref(stream->buffer);
-    stream->buffer = NULL;
+    if (stream->buffer)
+    {
+        gst_buffer_unmap(stream->buffer, &stream->map_info);
+        gst_buffer_unref(stream->buffer);
+        stream->buffer = NULL;
+    }

pthread_mutex_unlock(&parser->mutex);
     pthread_cond_signal(&stream->event_empty_cond);