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do not dereference p if we know it is NULL.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@44745 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
2006-10-08 14:10:26 +00:00
parent 1b64c41369
commit b90f91c3b4
1 changed files with 4 additions and 4 deletions
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8
channels/chan_sip.c
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@@ -14332,7 +14332,10 @@ retrylock:
/* Find the active SIP dialog or create a new one */
p = find_call(&req, &sin, req.method); /* returns p locked */
if (p) {
if (p == NULL) {
if (option_debug)
ast_log(LOG_DEBUG, "Invalid SIP message - rejected , no callid, len %d\n", req.len);
} else {
/* Go ahead and lock the owner if it has one -- we may need it */
/* becaues this is deadlock-prone, we need to try and unlock if failed */
if (p->owner && ast_channel_trylock(p->owner)) {
@@ -14368,9 +14371,6 @@ retrylock:
if (p->owner && !nounlock)
ast_channel_unlock(p->owner);
ast_mutex_unlock(&p->lock);
} else {
if (option_debug)
ast_log(LOG_DEBUG, "Invalid SIP message - rejected , bad request: %-70.70s\n", p->callid[0] ? p->callid : "<no callid>");
}
ast_mutex_unlock(&netlock);
if (recount)