Use usb_get_dev() to increment the reference count of the usb device structure in order to avoid releasing the structure while it is still in use. And use usb_put_dev() to decrement the reference count and thus, when it will be equal to 0 the structure will be released. Signed-off-by: Salah Triki <salah.triki@xxxxxxxxx> --- Change since v1: Modification of the description drivers/bluetooth/bcm203x.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c index e667933c3d70..547d35425d70 100644 --- a/drivers/bluetooth/bcm203x.c +++ b/drivers/bluetooth/bcm203x.c @@ -166,7 +166,7 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id if (!data) return -ENOMEM; - data->udev = udev; + data->udev = usb_get_dev(udev); data->state = BCM203X_LOAD_MINIDRV; data->urb = usb_alloc_urb(0, GFP_KERNEL); @@ -244,6 +244,8 @@ static void bcm203x_disconnect(struct usb_interface *intf) usb_set_intfdata(intf, NULL); + usb_put_dev(data->udev); + usb_free_urb(data->urb); kfree(data->fw_data); kfree(data->buffer); -- 2.25.1