avcodec/vda_h264: fix null pointer dereference

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

avcodec/vda_h264: fix null pointer dereference
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
28563327 · Michael Niedermayer · 5449239a · 28563327
Commit 28563327 authored May 12, 2014 by Michael Niedermayer
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Showing with 5 additions and 3 deletions

vda_h264.c libavcodec/vda_h264.c +5 -3

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--- a/libavcodec/vda_h264.c
+++ b/libavcodec/vda_h264.c
@@ -274,9 +274,11 @@ int ff_vda_destroy_decoder(struct vda_context *vda_ctx)
 static int vda_h264_uninit(AVCodecContext *avctx)
 {
    VDAContext *vda = avctx->internal->hwaccel_priv_data;
-    av_freep(&vda->bitstream);
-    if (vda->frame)
-        CVPixelBufferRelease(vda->frame);
+    if (vda) {
+        av_freep(&vda->bitstream);
+        if (vda->frame)
+            CVPixelBufferRelease(vda->frame);
+    }
    return 0;
 }