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net/9p/usbg: set client to Disconnected on usb9pfs_disable

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This patch is setting the client status to Disconnected, when the
client is still in use. Otherwise a disconnected usb cable would run
any use of the mount to faults.

Fixes: a3be076dc1 ("net/9p/usbg: Add new usb gadget function transport")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Grzeschik <mgr@kernel.org>
Message-ID: <20260922-usb9pfsfixes-v1-2-9d8dcc52904c@kernel.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This commit is contained in:
Michael Grzeschik 2026-09-22 00:25:55 +02:00 committed by Dominique Martinet
parent f81cdb9164
commit 795f8eeca0
1 changed files with 5 additions and 0 deletions
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5
net/9p/trans_usbg.c
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@ -757,7 +757,12 @@ static int usb9pfs_set_alt(struct usb_function *f,
static void usb9pfs_disable(struct usb_function *f)
{
struct f_usb9pfs *usb9pfs = func_to_usb9pfs(f);
unsigned long flags;
spin_lock_irqsave(&usb9pfs->lock, flags);
if (usb9pfs->client)
usb9pfs->client->status = Disconnected;
spin_unlock_irqrestore(&usb9pfs->lock, flags);
usb9pfs_clear_tx(usb9pfs);
}