From e9cf10583afc85f25ff2b9ea21e57fec33485377 Mon Sep 17 00:00:00 2001
From: Andrey Volk <andywolk@gmail.com>
Date: Wed, 12 Jun 2024 15:14:29 +0300
Subject: [PATCH] [Core] process_device_hup: Coverity 1546196 Check of
 thread-shared field evades lock acquisition

---
 src/switch_channel.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/switch_channel.c b/src/switch_channel.c
index afb18aa503..013701e7a5 100644
--- a/src/switch_channel.c
+++ b/src/switch_channel.c
@@ -5185,11 +5185,13 @@ static void process_device_hup(switch_channel_t *channel)
 	switch_device_record_t *drec = NULL;
 	switch_device_node_t *node;
 
+	switch_mutex_lock(globals.device_mutex);
 	if (!channel->device_node) {
+		switch_mutex_unlock(globals.device_mutex);
+
 		return;
 	}
 
-	switch_mutex_lock(globals.device_mutex);
 	node = channel->device_node;
 	drec = channel->device_node->parent;