Check if the dci structer has been allocated before trying to release it. Signed-off-by: Christian Gromm <christian.gromm@xxxxxxxxxxxxx> --- v3: This patch has beed added to the series. v4: drivers/staging/most/usb/usb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/most/usb/usb.c b/drivers/staging/most/usb/usb.c index 3c8ae17..857f916 100644 --- a/drivers/staging/most/usb/usb.c +++ b/drivers/staging/most/usb/usb.c @@ -1217,7 +1217,8 @@ static void hdm_disconnect(struct usb_interface *interface) del_timer_sync(&mdev->link_stat_timer); cancel_work_sync(&mdev->poll_work_obj); - device_unregister(&mdev->dci->dev); + if (mdev->dci) + device_unregister(&mdev->dci->dev); most_deregister_interface(&mdev->iface); kfree(mdev->busy_urbs); -- 2.7.4 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel