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authorScott Griepentrog <sgriepentrog@digium.com>2014-01-28 16:43:25 +0000
committerScott Griepentrog <sgriepentrog@digium.com>2014-01-28 16:43:25 +0000
commit601692a7e4cdb9e9b9ee128d66d7b36e632184be (patch)
treede1273ef1fad0f0eb88f79c4c56476c367abc987 /main
parentaff9e1f5835032c0c809d3897550e973bb01a71d (diff)
rtp_engine: improved handling of get_rtp_info failure
In ast_rtp_instance_make_compatible(), after a failure of channel tech call get_rtp_info() to return peer_instance, the null pointer would be passed to ao2_ref, producing an error that looked like a refernce counting problem but is not. This patch corrects that and adds helpful LOG_ERROR messages to indicate which failure path occurred. (issue AST-1276) Review: https://reviewboard.asterisk.org/r/3156/ ........ Merged revisions 406721 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 406722 from http://svn.asterisk.org/svn/asterisk/branches/11 ........ Merged revisions 406723 from http://svn.asterisk.org/svn/asterisk/branches/12 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@406724 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'main')
-rw-r--r--main/rtp_engine.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/main/rtp_engine.c b/main/rtp_engine.c
index 82fb3b2be..4e686fa1b 100644
--- a/main/rtp_engine.c
+++ b/main/rtp_engine.c
@@ -1357,11 +1357,15 @@ int ast_rtp_instance_make_compatible(struct ast_channel *chan, struct ast_rtp_in
}
glue->get_rtp_info(peer, &peer_instance);
-
- if (!peer_instance || peer_instance->engine != instance->engine) {
+ if (!peer_instance) {
+ ast_log(LOG_ERROR, "Unable to get_rtp_info for peer type %s\n", glue->type);
+ ast_channel_unlock(peer);
+ return -1;
+ }
+ if (peer_instance->engine != instance->engine) {
+ ast_log(LOG_ERROR, "Peer engine mismatch for type %s\n", glue->type);
ast_channel_unlock(peer);
ao2_ref(peer_instance, -1);
- peer_instance = NULL;
return -1;
}