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USB: serial: fix dynamic id driver deregistration race

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Only free the dynamic ids after having deregistered the driver and
removed the "new_id" attribute to avoid leaking any id added by a racing
write to the attribute.

Fixes: 93bacefc4c ("USB serial: add dynamic id support to usb-serial core")
Cc: stable@vger.kernel.org	# 2.6.21
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2026-08-21 17:45:44 +02:00
parent 33c920f7c5
commit 63594e8ffe
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/serial/bus.c
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@ -165,7 +165,7 @@ int usb_serial_bus_register(struct usb_serial_driver *driver)
void usb_serial_bus_deregister(struct usb_serial_driver *driver)
{
free_dynids(driver);
driver_unregister(&driver->driver);
free_dynids(driver);
}