Commit 14f7a567 authored by Taehee Yoo's avatar Taehee Yoo Committed by Greg Kroah-Hartman

caif-hsi: fix possible deadlock in cfhsi_exit_module()

[ Upstream commit fdd258d4 ]

cfhsi_exit_module() calls unregister_netdev() under rtnl_lock().
but unregister_netdev() internally calls rtnl_lock().
So deadlock would occur.

Fixes: c4125400 ("caif-hsi: Add rtnl support")
Signed-off-by: default avatarTaehee Yoo <ap420073@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c73a6485
...@@ -1455,7 +1455,7 @@ static void __exit cfhsi_exit_module(void) ...@@ -1455,7 +1455,7 @@ static void __exit cfhsi_exit_module(void)
rtnl_lock(); rtnl_lock();
list_for_each_safe(list_node, n, &cfhsi_list) { list_for_each_safe(list_node, n, &cfhsi_list) {
cfhsi = list_entry(list_node, struct cfhsi, list); cfhsi = list_entry(list_node, struct cfhsi, list);
unregister_netdev(cfhsi->ndev); unregister_netdevice(cfhsi->ndev);
} }
rtnl_unlock(); rtnl_unlock();
} }
......
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