On Sat, Jul 24, 2021 at 09:55:42PM +0100, Salah Triki wrote: > Use usb_get_intf() and usb_put_intf() in order to update the reference > count of the usb interface structure. > This commit message doesn't say what the user visible effects are. If you encountered this bug at runtime then please put the stack trace in the commit mesage. Add a Fixes tag. > Signed-off-by: Salah Triki <salah.triki@xxxxxxxxx> > --- > drivers/input/tablet/acecad.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c > index a38d1fe97334..85fe134a30ee 100644 > --- a/drivers/input/tablet/acecad.c > +++ b/drivers/input/tablet/acecad.c > @@ -151,7 +151,7 @@ static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_ > goto fail2; > } > > - acecad->intf = intf; > + acecad->intf = usb_get_intf(intf); > acecad->input = input_dev; > > if (dev->manufacturer) You need to call usb_put_intf() if input_register_device() fails. regards, dan carpenter