Handle the case where hb_list_audio_config_item is passed an invalid index.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@1429 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 4 insertions, 2 deletions

diff --git a/libhb/common.c b/libhb/common.c
index 97d84ff60..00810dd79 100644
--- a/libhb/common.c
+++ b/libhb/common.c
@@ -739,8 +739,10 @@ int hb_audio_add(const hb_job_t * job, const hb_audio_config_t * audiocfg)
 hb_audio_config_t * hb_list_audio_config_item(hb_list_t * list, int i)
 {
     assert(list != NULL);
+    hb_audio_t *audio = NULL;
 
-    hb_audio_t *audio = hb_list_item(list, i);
+    if( (audio = hb_list_item(list, i)) )
+        return &(audio->config);
 
-    return &(audio->config);
+    return NULL;
 }