Re: [syzbot] [net?] possible deadlock in team_del_slave (3)
From: Jeongjun Park
Date: Thu Jul 04 2024 - 07:03:05 EST
#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
---
drivers/net/team/team_core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c
index ab1935a4aa2c..245566a1875d 100644
--- a/drivers/net/team/team_core.c
+++ b/drivers/net/team/team_core.c
@@ -1213,7 +1213,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev,
goto err_port_enter;
}
+ mutex_unlock(&team->lock);
err = dev_open(port_dev, extack);
+ mutex_lock(&team->lock);
if (err) {
netdev_dbg(dev, "Device %s opening failed\n",
portname);
--