Merge commit '5891fd017aa7bed4c423b8511090cf8641a0afa4' into release/2.4

* commit '5891fd017aa7bed4c423b8511090cf8641a0afa4':
  dvdsubdec: Do not leak on failure path

Conflicts:
	libavcodec/dvdsubdec.c

See: 7fa9f7ef1c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/dvdsubdec.c

@@ -586,6 +586,7 @@ static int dvdsub_parse_extradata(AVCodecContext *avctx)
 {
     DVDSubContext *ctx = (DVDSubContext*) avctx->priv_data;
     char *dataorig, *data;
+    int ret = 1;
 
     if (!avctx->extradata || !avctx->extradata_size)
         return 1;
@@ -606,11 +607,9 @@ static int dvdsub_parse_extradata(AVCodecContext *avctx)
         } else if (strncmp("size:", data, 5) == 0) {
             int w, h;
             if (sscanf(data + 5, "%dx%d", &w, &h) == 2) {
-               int ret = ff_set_dimensions(avctx, w, h);
-               if (ret < 0) {
-                   av_free(dataorig);
-                   return ret;
-               }
+               ret = ff_set_dimensions(avctx, w, h);
+               if (ret < 0)
+                   goto fail;
             }
         }
 
@@ -618,8 +617,9 @@ static int dvdsub_parse_extradata(AVCodecContext *avctx)
         data += strspn(data, "\n\r");
     }
 
+fail:
     av_free(dataorig);
-    return 1;
+    return ret;
 }
 
 static av_cold int dvdsub_init(AVCodecContext *avctx)