Re: [PATCH v2] tablet: acecad: update the reference count of the usb interface structure

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On Wed, Aug 04, 2021 at 01:58:38PM +0300, Dan Carpenter wrote:
> On Sat, Jul 31, 2021 at 05:09:38PM +0100, Salah Triki wrote:
> >  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)
> 
> As I mentioned earlier, you need to drop the reference if
> input_register_device() fails.

Also as mentioned in other threads, this is not needed at all.




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