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authorHe Junyan <junyan.he@hotmail.com>2020-02-07 23:56:13 +0800
committerGStreamer Merge Bot <gitlab-merge-bot@gstreamer-foundation.org>2020-03-06 12:40:48 +0000
commit5e612aeb849b678b046e8249657f2fb70b055572 (patch)
tree8d71f71fb1049a00753d4266bcd2ce0c8ed32f8d /gst-libs
parentda008baac29c3319cc13c0c3b20ce3669820458d (diff)
libs: videopool: fix a condition race for pool allocate.
Diffstat (limited to 'gst-libs')
-rw-r--r--gst-libs/gst/vaapi/gstvaapivideopool.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/gst-libs/gst/vaapi/gstvaapivideopool.c b/gst-libs/gst/vaapi/gstvaapivideopool.c
index faba3677..cb3ef3a6 100644
--- a/gst-libs/gst/vaapi/gstvaapivideopool.c
+++ b/gst-libs/gst/vaapi/gstvaapivideopool.c
@@ -179,6 +179,13 @@ gst_vaapi_video_pool_get_object_unlocked (GstVaapiVideoPool * pool)
g_mutex_lock (&pool->mutex);
if (!object)
return NULL;
+
+ /* Others already allocated a new one before us during we
+ release the mutex */
+ if (pool->capacity && pool->used_count >= pool->capacity) {
+ gst_mini_object_unref (object);
+ return NULL;
+ }
}
++pool->used_count;