From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 28 May 2015 11:30:07 +0000 (+0200)
Subject: epggrab: eit/opentv - try to rule out another wrong memory access on shutdown
X-Git-Tag: v4.2.1~2435
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a964b5265d5b129c3867721cac6d4b879d254fe6;p=thirdparty%2Ftvheadend.git

epggrab: eit/opentv - try to rule out another wrong memory access on shutdown
---

diff --git a/src/epggrab.h b/src/epggrab.h
index a85d9b226..1e0f41655 100644
--- a/src/epggrab.h
+++ b/src/epggrab.h
@@ -274,6 +274,7 @@ extern uint32_t              epggrab_channel_rename;
 extern uint32_t              epggrab_channel_renumber;
 extern uint32_t              epggrab_channel_reicon;
 extern uint32_t              epggrab_epgdb_periodicsave;
+extern int                   epggrab_ota_running;
 extern char                 *epggrab_ota_cron;
 extern uint32_t              epggrab_ota_timeout;
 extern uint32_t              epggrab_ota_initial;
diff --git a/src/epggrab/module/eit.c b/src/epggrab/module/eit.c
index e1d5eeecd..d966e29d7 100644
--- a/src/epggrab/module/eit.c
+++ b/src/epggrab/module/eit.c
@@ -579,12 +579,19 @@ _eit_callback
   uint16_t onid, tsid, sid;
   uint32_t extraid;
   mpegts_service_t     *svc;
-  mpegts_mux_t         *mm  = mt->mt_mux;
-  epggrab_ota_map_t    *map = mt->mt_opaque;
-  epggrab_module_t     *mod = (epggrab_module_t *)map->om_module;
+  mpegts_mux_t         *mm;
+  epggrab_ota_map_t    *map;
+  epggrab_module_t     *mod;
   epggrab_ota_mux_t    *ota = NULL;
   mpegts_psi_table_state_t *st;
 
+  if (!epggrab_ota_running)
+    return -1;
+
+  mm  = mt->mt_mux;
+  map = mt->mt_opaque;
+  mod = (epggrab_module_t *)map->om_module;
+
   /* Validate */
   if(tableid < 0x4e || tableid > 0x6f || len < 11)
     return -1;
diff --git a/src/epggrab/module/opentv.c b/src/epggrab/module/opentv.c
index 371832f40..28308c8c0 100644
--- a/src/epggrab/module/opentv.c
+++ b/src/epggrab/module/opentv.c
@@ -541,9 +541,15 @@ opentv_table_callback
   int r = 1, cid, mjd;
   int sect, last, ver;
   mpegts_psi_table_state_t *st;
-  opentv_status_t *sta = mt->mt_opaque;
-  opentv_module_t *mod = sta->os_mod;
-  epggrab_ota_mux_t *ota = sta->os_ota;
+  opentv_status_t *sta;
+  opentv_module_t *mod;
+  epggrab_ota_mux_t *ota;
+
+  if (!epggrab_ota_running) return -1;
+
+  sta = mt->mt_opaque;
+  mod = sta->os_mod;
+  ota = sta->os_ota;
 
   /* Validate */
   if (len < 7) return -1;
@@ -612,11 +618,18 @@ static int
 opentv_bat_callback
   ( mpegts_table_t *mt, const uint8_t *buf, int len, int tableid )
 {
-  int *t;
-  opentv_status_t *sta = mt->mt_opaque;
-  opentv_module_t *mod = sta->os_mod;
-  int r = dvb_bat_callback(mt, buf, len, tableid);
-  epggrab_ota_mux_t *ota = sta->os_ota;
+  int *t, r;
+  opentv_status_t *sta;
+  opentv_module_t *mod;
+  epggrab_ota_mux_t *ota;
+
+  if (!epggrab_ota_running) return -1;
+
+  sta = mt->mt_opaque;
+  mod = sta->os_mod;
+  ota = sta->os_ota;
+
+  r = dvb_bat_callback(mt, buf, len, tableid);
 
   /* Register */
   if (!ota) {