Merge commit '80f955c90867561dcce769216bc497e13281eb38'

* commit '80f955c90867561dcce769216bc497e13281eb38':
  vda: Check the correct pointer for buffer allocation

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/vda_h264.c

@@ -409,7 +409,7 @@ static int vda_h264_end_frame(AVCodecContext *avctx)
                                      sizeof(vda->frame),
                                      release_buffer, NULL,
                                      AV_BUFFER_FLAG_READONLY);
-    if (!frame->buf)
+    if (!frame->buf[0])
         return AVERROR(ENOMEM);
 
     frame->data[3] = (uint8_t*)vda->frame;