The close function has to fully reverse the state change of 9p_create
(mount) and the potential call of set_alt(1). This includes to ensure
that the usage of the endpoints is not active any more.

Fixes: a3be076dc174 ("net/9p/usbg: Add new usb gadget function transport")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
 net/9p/trans_usbg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/9p/trans_usbg.c b/net/9p/trans_usbg.c
index f7a94572013e7d1015d75fb5dbdde5eb81f7d7d0..fb05198dc2a7d604cfad2db26a63e40e632651a2 100644
--- a/net/9p/trans_usbg.c
+++ b/net/9p/trans_usbg.c
@@ -495,6 +495,8 @@ static void p9_usbg_close(struct p9_client *client)
 	mutex_lock(&usb9pfs_lock);
 	dev->inuse = false;
 	mutex_unlock(&usb9pfs_lock);
+
+	disable_usb9pfs(usb9pfs);
 }
 
 static int p9_usbg_request(struct p9_client *client, struct p9_req_t *p9_req)

-- 
2.47.3