(closes issue #13409)

Reported by: tomaso
Patches:
      asterisk-1.6.0-rc2-cdrmemleak.patch uploaded by tomaso (license 564)

I basically spent the day, verifying that this patch 
solves the problem, and doesn't hurt in non-problem 
cases. Why valgrind did not plainly reveal this leak
absolutely mystifies and stuns me. 

Many, many thanks to tomaso for finding and providing the fix.




git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@140670 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/channel.c

@@ -1277,6 +1277,11 @@ void ast_channel_free(struct ast_channel *chan)
 
 	/* Destroy the jitterbuffer */
 	ast_jb_destroy(chan);
+
+	if (chan->cdr) {
+		ast_cdr_free(chan->cdr);
+		chan->cdr = NULL;
+	}
 	
 	ast_mutex_destroy(&chan->lock);
 
@@ -1523,6 +1528,7 @@ int ast_hangup(struct ast_channel *chan)
 			
 		ast_cdr_end(chan->cdr);
 		ast_cdr_detach(chan->cdr);
+		chan->cdr = NULL;
 	}
 	
 	ast_channel_free(chan);

main/pbx.c

@@ -4972,6 +4972,7 @@ static int ast_pbx_outgoing_cdr_failed(void)
 	ast_cdr_end(chan->cdr);
 	ast_cdr_failed(chan->cdr);      /* set the status to failed */
 	ast_cdr_detach(chan->cdr);      /* post and free the record */
+	chan->cdr = NULL;
 	ast_channel_free(chan);         /* free the channel */
 
 	return 0;  /* success */