From: Anthony Minessale <anthm@freeswitch.org>
Date: Fri, 14 Sep 2012 19:25:15 +0000 (-0500)
Subject: fix crash in mod_fifo when deleting a node when its in use
X-Git-Tag: v1.2.3^2~42
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5bbc372c560a612d0219bbf27240f21e42c20530;p=thirdparty%2Ffreeswitch.git

fix crash in mod_fifo when deleting a node when its in use
---

diff --git a/src/mod/applications/mod_fifo/mod_fifo.c b/src/mod/applications/mod_fifo/mod_fifo.c
index 2ef5c7fca9..f500c4683a 100644
--- a/src/mod/applications/mod_fifo/mod_fifo.c
+++ b/src/mod/applications/mod_fifo/mod_fifo.c
@@ -1224,10 +1224,15 @@ static void *SWITCH_THREAD_FUNC ringall_thread_run(switch_thread_t *thread, void
 	node_name = cbh->rows[0]->node_name;
 
 	switch_mutex_lock(globals.mutex);
-	node = switch_core_hash_find(globals.fifo_hash, node_name);
-	switch_thread_rwlock_rdlock(node->rwlock);
+	if ((node = switch_core_hash_find(globals.fifo_hash, node_name))) {
+		switch_thread_rwlock_rdlock(node->rwlock);
+	}
 	switch_mutex_unlock(globals.mutex);
 
+	if (!node) {
+		goto end;
+	}
+
 	for (i = 0; i < cbh->rowcount; i++) {
 		struct call_helper *h = cbh->rows[i];