avformat: Forward errors where possible

It is not uncommon to find code where the caller thinks to know better
what the return value should be than the callee. E.g. something like
"if (av_new_packet(pkt, size) < 0) return AVERROR(ENOMEM);". This commit
changes several instances of this to instead forward the actual error.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 5 insertions, 4 deletions

diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c
index 86228595c9..85356ec439 100644
--- a/libavformat/cafdec.c
+++ b/libavformat/cafdec.c
@@ -100,6 +100,7 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
 {
     AVIOContext *pb = s->pb;
     AVStream *st      = s->streams[0];
+    int ret;
 
     if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
         return -1;
@@ -135,8 +136,8 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         }
 
         av_freep(&st->codecpar->extradata);
-        if (ff_alloc_extradata(st->codecpar, ALAC_HEADER))
-            return AVERROR(ENOMEM);
+        if ((ret = ff_alloc_extradata(st->codecpar, ALAC_HEADER)) < 0)
+            return ret;
 
         /* For the old style cookie, we skip 12 bytes, then read 36 bytes.
          * The new style cookie only contains the last 24 bytes of what was
@@ -176,8 +177,8 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         avio_skip(pb, size);
     } else {
         av_freep(&st->codecpar->extradata);
-        if (ff_get_extradata(s, st->codecpar, pb, size) < 0)
-            return AVERROR(ENOMEM);
+        if ((ret = ff_get_extradata(s, st->codecpar, pb, size)) < 0)
+            return ret;
     }
 
     return 0;