Merge commit 'b9b68955' into release/2.4

* commit 'b9b68955':
  img2dec: check av_new_packet return value

Conflicts:
	libavformat/img2dec.c

See: 3f814891Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/img2dec.c

@@ -360,7 +360,7 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
     VideoDemuxData *s = s1->priv_data;
     char filename_bytes[1024];
     char *filename = filename_bytes;
-    int i;
+    int i, res;
     int size[3]           = { 0 }, ret[3] = { 0 };
     AVIOContext *f[3]     = { NULL };
     AVCodecContext *codec = s1->streams[0]->codec;
@@ -436,8 +436,9 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
         }
     }
 
-    if (av_new_packet(pkt, size[0] + size[1] + size[2]) < 0)
-        return AVERROR(ENOMEM);
+    res = av_new_packet(pkt, size[0] + size[1] + size[2]);
+    if (res < 0)
+        return res;
     pkt->stream_index = 0;
     pkt->flags       |= AV_PKT_FLAG_KEY;
     if (s->ts_from_file) {