Merged revisions 136062 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r136062 | mmichelson | 2008-08-06 10:58:40 -0500 (Wed, 06 Aug 2008) | 16 lines

Since adding the AST_CONTROL_SRCUPDATE frame type,
there are places where ast_rtp_new_source may be called
where the tech_pvt of a channel may not yet have an
rtp structure allocated. This caused a crash in chan_skinny,
which was fixed earlier, but now the same crash has been 
reported against chan_h323 as well. It seems that the best 
solution is to modify ast_rtp_new_source to not attempt to 
set the marker bit if the rtp structure passed in is NULL.

This change to ast_rtp_new_source also allows the removal
of what is now a redundant pointer check from chan_skinny.

(closes issue #13247)
Reported by: pj


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git-svn-id: http://svn.digium.com/svn/asterisk/trunk@136063 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 3 insertions, 1 deletions

diff --git a/main/rtp.c b/main/rtp.c
index bc3db9b4b..6e15433ba 100644
--- a/main/rtp.c
+++ b/main/rtp.c
@@ -2537,7 +2537,9 @@ int ast_rtp_setqos(struct ast_rtp *rtp, int tos, int cos, char *desc)
 
 void ast_rtp_new_source(struct ast_rtp *rtp)
 {
-	rtp->set_marker_bit = 1;
+	if (rtp) {
+		rtp->set_marker_bit = 1;
+	}
 	return;
 }