[FFmpeg-cvslog] avcodec/nvdec: Use av_buffer_replace() where appropriate

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Sat Aug  6 09:18:29 2022 +0200| [56973eb6874316b405e37097168b1f2dd89a1e7f] | committer: Andreas Rheinhardt

avcodec/nvdec: Use av_buffer_replace() where appropriate

Reviewed-by: Timo Rothenpieler <timo at rothenpieler.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=56973eb6874316b405e37097168b1f2dd89a1e7f
---

 libavcodec/nvdec.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/libavcodec/nvdec.c b/libavcodec/nvdec.c
index 15665b83bb..fbaedf0b6b 100644
--- a/libavcodec/nvdec.c
+++ b/libavcodec/nvdec.c
@@ -524,12 +524,9 @@ static int nvdec_retrieve_data(void *logctx, AVFrame *frame)
         goto copy_fail;
     }
 
-    av_buffer_unref(&frame->hw_frames_ctx);
-    frame->hw_frames_ctx = av_buffer_ref(decoder->real_hw_frames_ref);
-    if (!frame->hw_frames_ctx) {
-        ret = AVERROR(ENOMEM);
+    ret = av_buffer_replace(&frame->hw_frames_ctx, decoder->real_hw_frames_ref);
+    if (ret < 0)
         goto copy_fail;
-    }
 
     unmap_data->idx = cf->idx;
     if (!(unmap_data->idx_ref     = av_buffer_ref(cf->idx_ref)) ||