From 245aa1a62d231dba0093bcf31a49ee3a76d7a264 Mon Sep 17 00:00:00 2001
From: Joshua Colp <jcolp@digium.com>
Date: Wed, 30 Aug 2006 03:18:04 +0000
Subject: [PATCH] Only switch the second alert fd (which is RTCP) to callback
 mode if it is in use

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@41317 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 main/rtp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main/rtp.c b/main/rtp.c
index 2ba7ee0de4..8631a4d77e 100644
--- a/main/rtp.c
+++ b/main/rtp.c
@@ -2807,7 +2807,8 @@ static int p2p_callback_enable(struct ast_channel *chan, struct ast_rtp *rtp, in
 
 	/* Now, fire up callback mode */
 	iod[0] = ast_io_add(rtp->io, fds[0], p2p_rtp_callback, AST_IO_IN, rtp);
-	iod[1] = ast_io_add(rtp->io, fds[1], p2p_rtp_callback, AST_IO_IN, rtp);
+	if (fds[1] >= 0)
+		iod[1] = ast_io_add(rtp->io, fds[1], p2p_rtp_callback, AST_IO_IN, rtp);
 
 	return 1;
 }
-- 
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