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, 2 insertions, 4 deletions

diff --git a/libavcodec/sgidec.c b/libavcodec/sgidec.c
index 4b98daf4f4..e7f453bc17 100644
--- a/libavcodec/sgidec.c
+++ b/libavcodec/sgidec.c
@@ -205,10 +205,8 @@ static int decode_frame(AVCodecContext *avctx,
         return -1;
     avcodec_set_dimensions(avctx, s->width, s->height);
 
-    if (ff_get_buffer(avctx, p, 0) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed.\n");
-        return -1;
-    }
+    if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
+        return ret;
 
     p->pict_type = AV_PICTURE_TYPE_I;
     p->key_frame = 1;