From 53115ff6887c2ac7360ee6fc48f49ca7db5b8106 Mon Sep 17 00:00:00 2001
From: Russell Bryant <russell@russellbryant.com>
Date: Sun, 24 Dec 2006 07:25:38 +0000
Subject: [PATCH] Merged revisions 48943 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r48943 | russell | 2006-12-24 02:23:07 -0500 (Sun, 24 Dec 2006) | 3 lines

Check for the proper return value on an error in a call to mmap().
This was reported by Andy Wang on the asterisk-dev list.  Thanks!

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@48944 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 channels/chan_iax2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 3c2f80406f..287ad2e0ce 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -1411,7 +1411,7 @@ static int try_firmware(char *s)
 		return -1;
 	}
 	fwh = mmap(NULL, stbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0); 
-	if (!fwh) {
+	if (fwh == (void *) -1) {
 		ast_log(LOG_WARNING, "mmap failed: %s\n", strerror(errno));
 		close(fd);
 		return -1;