From: Nick Burrett <nick@sqrt.co.uk>
Date: Wed, 29 Apr 2015 06:59:28 +0000 (+0100)
Subject: Fix crash when trying to configure adapters that are already in use.
X-Git-Tag: v4.1~90
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2bcf09f2ab0cb33d4faee6a0d9e738850c63519c;p=thirdparty%2Ftvheadend.git

Fix crash when trying to configure adapters that are already in use.

If another application has an adapter open, then la==NULL.  Skip the
adapter so that another can be configured.
---

diff --git a/src/input/mpegts/linuxdvb/linuxdvb_adapter.c b/src/input/mpegts/linuxdvb/linuxdvb_adapter.c
index 99602d206..843809395 100644
--- a/src/input/mpegts/linuxdvb/linuxdvb_adapter.c
+++ b/src/input/mpegts/linuxdvb/linuxdvb_adapter.c
@@ -399,6 +399,10 @@ linuxdvb_adapter_add ( const char *path )
   /* Relock before exit */
   pthread_mutex_lock(&global_lock);
 
+  /* Adapter couldn't be opened; there's nothing to work with  */
+  if (!la)
+    return;
+
 #if DVB_VER_ATLEAST(5,5)
   memset(fetypes, 0, sizeof(fetypes));
   LIST_FOREACH(lfe, &la->la_frontends, lfe_link)