lavc: factorize ff_{thread_,re,}get_buffer error messages.

Coccinelle profile used:

  @@
  expression r, ctx, f, loglevel, str, flags;
  @@

  -if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_get_buffer(ctx, f, flags)) < 0)
  +    return r;

  @@
  expression r, ctx, f, loglevel, str;
  @@

  -if ((r = ff_reget_buffer(ctx, f)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_reget_buffer(ctx, f)) < 0)
  +    return r;

  @@
  expression r, ctx, f, loglevel, str, flags;
  @@

  -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
  +    return r;

...along with some manual patches for the remaining ones.

1 files changed, 3 insertions, 5 deletions

diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c
index 51e32b5fb3..5cc205ce03 100644
--- a/libavcodec/dvdec.c
+++ b/libavcodec/dvdec.c
@@ -319,7 +319,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
     int buf_size = avpkt->size;
     DVVideoContext *s = avctx->priv_data;
     const uint8_t* vsc_pack;
-    int apt, is16_9;
+    int ret, apt, is16_9;
 
     s->sys = avpriv_dv_frame_profile2(avctx, s->sys, buf, buf_size);
     if (!s->sys || buf_size < s->sys->frame_size || ff_dv_init_dynamic_tables(s->sys)) {
@@ -332,10 +332,8 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
     avctx->pix_fmt   = s->sys->pix_fmt;
     avctx->time_base = s->sys->time_base;
     avcodec_set_dimensions(avctx, s->sys->width, s->sys->height);
-    if (ff_get_buffer(avctx, &s->picture, 0) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
-        return -1;
-    }
+    if ((ret = ff_get_buffer(avctx, &s->picture, 0)) < 0)
+        return ret;
     s->picture.interlaced_frame = 1;
     s->picture.top_field_first  = 0;