st/omx: Avoid segfault in deconstructor if constructor fails

If the constructor fails before the LIST_INIT calls the pointers
will be null and the deconstructor will segfault.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

diff --git a/src/gallium/state_trackers/omx/vid_enc.c b/src/gallium/state_trackers/omx/vid_enc.c
index aa45089ae043827300d8235b505ef21fe4e8942b..df22a97a42cb8edd5d63b3482cec366d6d33cee8 100644 (file)
--- a/src/gallium/state_trackers/omx/vid_enc.c
+++ b/src/gallium/state_trackers/omx/vid_enc.c
@@ -869,6 +869,9 @@ static void enc_ReleaseTasks(struct list_head *head)
 {
    struct encode_task *i, *next;
 
+   if (!head)
+          return;
+
    LIST_FOR_EACH_ENTRY_SAFE(i, next, head, list) {
       pipe_resource_reference(&i->bitstream, NULL);
       i->buf->destroy(i->buf);