Re: [PATCH -next] usb: isp1760: Fix meaningless check in isp1763_run()

[tongtiangen]

On 2021/6/3 19:45, Greg Kroah-Hartman wrote:
> On Tue, Jun 01, 2021 at 06:03:11PM +0800, Tong Tiangen wrote:
> > There's a meaningless check in isp1763_run. According to the
> > similar implement in isp1760_run, the proper check should remove
> > retval = 0;
> >
> > Fixes: 60d789f3bfbb ("usb: isp1760: add support for isp1763")
> > Signed-off-by: Tong Tiangen <tongtiangen@xxxxxxxxxx>
> > ---
> >   drivers/usb/isp1760/isp1760-hcd.c | 1 -
> >   1 file changed, 1 deletion(-)
> >
> > diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
> > index 016a54ea76f4..27168b4a4ef2 100644
> > --- a/drivers/usb/isp1760/isp1760-hcd.c
> > +++ b/drivers/usb/isp1760/isp1760-hcd.c
> > @@ -1648,7 +1648,6 @@ static int isp1763_run(struct usb_hcd *hcd)
> >   	down_write(&ehci_cf_port_reset_rwsem);
> >   	retval = isp1760_hcd_set_and_wait(hcd, FLAG_CF, 250 * 1000);
> >   	up_write(&ehci_cf_port_reset_rwsem);
> > -	retval = 0;
> >   	if (retval)
> >   		return retval;
> >   
> > --
> > 2.18.0.huawei.25
> Did you test this change to verify that the driver still works properly?
> You are now checking something that never was checked before...
>
> thanks,
>
> greg k-h
> .
Sorry,  this fix was not send to Rui.
From the point of view of code logic, there should be a problem here. I 
don't have the actual hardware to verify whether it works properly. Rui 
may know if the patch affects the original workflow.

thanks
.
>