From 75ba0efb52c898601ef9febcba3e7a84ff2f311e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Wed, 3 Jan 2018 16:41:28 +0700
Subject: [PATCH] [lynda] Skip invalid subtitles (closes #15159)

---
 youtube_dl/extractor/lynda.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/youtube_dl/extractor/lynda.py b/youtube_dl/extractor/lynda.py
index 1b6f5091d..0d6026aad 100644
--- a/youtube_dl/extractor/lynda.py
+++ b/youtube_dl/extractor/lynda.py
@@ -244,8 +244,9 @@ def _fix_subtitles(self, subs):
     def _get_subtitles(self, video_id):
         url = 'https://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id
         subs = self._download_json(url, None, False)
-        if subs:
-            return {'en': [{'ext': 'srt', 'data': self._fix_subtitles(subs)}]}
+        fixed_subs = self._fix_subtitles(subs)
+        if fixed_subs:
+            return {'en': [{'ext': 'srt', 'data': fixed_subs}]}
         else:
             return {}