From 3c342501e3faafac7f1ef0283516e432e7a8fa0a Mon Sep 17 00:00:00 2001
From: Joshua Colp <jcolp@digium.com>
Date: Thu, 26 Feb 2009 15:40:10 +0000
Subject: [PATCH] Ensure there is a valid tone part before trying to play
 tones.

(closes issue #14558)
Reported by: alecdavis


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@178764 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/indications.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/main/indications.c b/main/indications.c
index 1fe01f148f..5b26ff239b 100644
--- a/main/indications.c
+++ b/main/indications.c
@@ -374,6 +374,11 @@ int ast_playtones_start(struct ast_channel *chan, int vol, const char *playlst,
 		d.nitems++;
 	}
 
+	if (!d.nitems) {
+		ast_log(LOG_ERROR, "No valid tone parts\n");
+		return -1;
+	}
+
 	if (ast_activate_generator(chan, &playtones, &d)) {
 		ast_free(d.items);
 		return -1;