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@gmail.com>
---
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);