From e66c098228320bdcc13ca975125f7b98b0f23219 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Tue, 6 Sep 2016 20:09:18 +0200
Subject: [PATCH] demux_mkv: don't crash if --ordered-chapters-files fails

It just crashed.
---
 demux/demux_mkv_timeline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/demux/demux_mkv_timeline.c b/demux/demux_mkv_timeline.c
index 8affe13ac2..256e009753 100644
--- a/demux/demux_mkv_timeline.c
+++ b/demux/demux_mkv_timeline.c
@@ -260,7 +260,7 @@ static void find_ordered_chapter_sources(struct tl_ctx *ctx)
             struct playlist *pl =
                 playlist_parse_file(opts->ordered_chapters_files, ctx->global);
             talloc_steal(tmp, pl);
-            for (struct playlist_entry *e = pl->first; e; e = e->next)
+            for (struct playlist_entry *e = pl ? pl->first : NULL; e; e = e->next)
                 MP_TARRAY_APPEND(tmp, filenames, num_filenames, e->filename);
         } else if (ctx->demuxer->stream->uncached_type != STREAMTYPE_FILE) {
             MP_WARN(ctx, "Playback source is not a "