Index: channels/chan_dahdi.c
===================================================================
--- channels/chan_dahdi.c	(revision 401703)
+++ channels/chan_dahdi.c	(working copy)
@@ -11949,6 +11949,11 @@
 	return NULL;
 }
 
+static void monitor_pfds_clean(void *arg) {
+	struct pollfd **pfds = arg;
+	ast_free(*pfds);
+}
+
 static void *do_monitor(void *data)
 {
 	int count, res, res2, spoint, pollres=0;
@@ -11972,6 +11977,7 @@
 #endif
 	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
 
+	pthread_cleanup_push(monitor_pfds_clean, &pfds);
 	for (;;) {
 		/* Lock the interface list */
 		ast_mutex_lock(&iflock);
@@ -12230,6 +12236,7 @@
 		}
 		ast_mutex_unlock(&iflock);
 	}
+	pthread_cleanup_pop(1);
 	/* Never reached */
 	return NULL;