matroskadec: bail on parsing of incorrect seek index segments

Signed-off-by: Anton Khirnov <anton@khirnov.net>

diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 0379977..8402967 100644 (file)
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1148,7 +1148,7 @@ static int matroska_parse_seekhead_entry(MatroskaDemuxContext *matroska, int idx
             matroska->num_levels++;
             matroska->current_id = 0;
 
-            ebml_parse(matroska, matroska_segment, matroska);
+            ret = ebml_parse(matroska, matroska_segment, matroska);
 
             /* remove dummy level */
             while (matroska->num_levels) {