More locking fixes

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1039 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_queue.c

@@ -767,6 +767,7 @@ static void reload_queues(void)
 				if (q) {
 					/* Initialize it */
 					memset(q, 0, sizeof(struct ast_call_queue));
+					ast_pthread_mutex_init(&q->lock);
 					strncpy(q->name, cat, sizeof(q->name));
 					new = 1;
 				} else new = 0;

channels/chan_iax2.c

@@ -5224,7 +5224,7 @@ static struct iax2_dpcache *find_cache(struct ast_channel *chan, char *data, cha
 		/* We found an entry that matches us! */
 		if (!strcmp(dp->peercontext, data) && !strcmp(dp->exten, exten)) 
 			break;
-		perv = dp;
+		prev = dp;
 		dp = next;
 	}
 	if (!dp) {