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/media/usb/stkwebcam/stk-webcam.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c index a45d464427c4..3b14679829ed 100644 --- a/drivers/media/usb/stkwebcam/stk-webcam.c +++ b/drivers/media/usb/stkwebcam/stk-webcam.c @@ -1309,7 +1309,7 @@ static int stk_camera_probe(struct usb_interface *interface, init_waitqueue_head(&dev->wait_frame); dev->first_init = 1; /* webcam LED management */ - dev->udev = udev; + dev->udev = usb_get_dev(udev); dev->interface = interface; usb_get_intf(interface); @@ -1376,6 +1376,7 @@ static void stk_camera_disconnect(struct usb_interface *interface) usb_set_intfdata(interface, NULL); unset_present(dev); + usb_put_dev(interface_to_usbdev(interface)); wake_up_interruptible(&dev->wait_frame); -- 2.25.1
