kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-11-08 19:08:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix a crash if the channel becomes NULL while attempting to lock it.

Browse Source 
(closes issue #12039)
Reported by: danpwi



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@103904 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2008-02-20 21:40:08 +00:00
parent 494aeb94ac
commit 6835ca7d03
1 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
channels/chan_local.c
View File

@@ -503,13 +503,15 @@ static int local_hangup(struct ast_channel *ast)
const char *status = pbx_builtin_getvar_helper(p->chan, "DIALSTATUS"); const char *status = pbx_builtin_getvar_helper(p->chan, "DIALSTATUS");
if ((status) && (p->owner)) { if ((status) && (p->owner)) {
/* Deadlock avoidance */ /* Deadlock avoidance */
while (ast_channel_trylock(p->owner)) { while (p->owner && ast_channel_trylock(p->owner)) {
ast_mutex_unlock(&p->lock); ast_mutex_unlock(&p->lock);
usleep(1); usleep(1);
ast_mutex_lock(&p->lock); ast_mutex_lock(&p->lock);
} }
pbx_builtin_setvar_helper(p->owner, "CHANLOCALSTATUS", status); if (p->owner) {
ast_channel_unlock(p->owner); pbx_builtin_setvar_helper(p->owner, "CHANLOCALSTATUS", status);
ast_channel_unlock(p->owner);
}
} }
p->chan = NULL; p->chan = NULL;
ast_clear_flag(p, LOCAL_LAUNCHED_PBX); ast_clear_flag(p, LOCAL_LAUNCHED_PBX);