Handle masq properly when clone channel has no vars (bug 3344)
authorMark Spencer <markster@digium.com>
Sat, 15 Jan 2005 06:37:51 +0000 (06:37 +0000)
committerMark Spencer <markster@digium.com>
Sat, 15 Jan 2005 06:37:51 +0000 (06:37 +0000)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4796 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channel.c

index 24a9351..0d1c5da 100755 (executable)
--- a/channel.c
+++ b/channel.c
@@ -2317,7 +2317,8 @@ static void clone_variables(struct ast_channel *original, struct ast_channel *cl
 
        /* Append variables from clone channel into original channel */
        /* XXX Is this always correct?  We have to in order to keep MACROS working XXX */
-       AST_LIST_INSERT_TAIL(&original->varshead, AST_LIST_FIRST(&clone->varshead), entries);
+       if (AST_LIST_FIRST(&clone->varshead))
+               AST_LIST_INSERT_TAIL(&original->varshead, AST_LIST_FIRST(&clone->varshead), entries);
 }
 
 /* Assumes channel will be locked when called */