diff options
Diffstat (limited to 'drivers/usb/serial/bus.c')
| -rw-r--r-- | drivers/usb/serial/bus.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index d200e2c29a8f..2fea1b1db4a2 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -136,12 +136,11 @@ static void free_dynids(struct usb_serial_driver *drv) { struct usb_dynid *dynid, *n; - spin_lock(&drv->dynids.lock); + guard(mutex)(&usb_dynids_lock); list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { list_del(&dynid->node); kfree(dynid); } - spin_unlock(&drv->dynids.lock); } const struct bus_type usb_serial_bus_type = { @@ -157,7 +156,6 @@ int usb_serial_bus_register(struct usb_serial_driver *driver) int retval; driver->driver.bus = &usb_serial_bus_type; - spin_lock_init(&driver->dynids.lock); INIT_LIST_HEAD(&driver->dynids.list); retval = driver_register(&driver->driver); |