On Sat, 28 Nov 2020, Dmitry Torokhov wrote:
> Hi Lee,
>
> On Thu, Nov 26, 2020 at 01:36:06PM +, Lee Jones wrote:
> > Fixes the following W=1 kernel build warning(s):
> >
> > drivers/input/touchscreen/usbtouchscreen.c: In function ‘nexio_read_data’:
> > drivers/input/touchscreen/usbtouchscreen.c:1052:50: warning: variable
> > ‘ret’ set but not used [-Wunused-but-set-variable]
> >
> > Cc: Dmitry Torokhov
> > Cc: Henrik Rydberg
> > Cc: James Hilliard
> > Cc: Daniel Ritz
> > Cc: linux-in...@vger.kernel.org
> > Signed-off-by: Lee Jones
> > ---
> > drivers/input/touchscreen/usbtouchscreen.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/input/touchscreen/usbtouchscreen.c
> > b/drivers/input/touchscreen/usbtouchscreen.c
> > index 397cb1d3f481b..c3b7130cd9033 100644
> > --- a/drivers/input/touchscreen/usbtouchscreen.c
> > +++ b/drivers/input/touchscreen/usbtouchscreen.c
> > @@ -1049,7 +1049,7 @@ static int nexio_read_data(struct usbtouch_usb
> > *usbtouch, unsigned char *pkt)
> > unsigned int data_len = be16_to_cpu(packet->data_len);
> > unsigned int x_len = be16_to_cpu(packet->x_len);
> > unsigned int y_len = be16_to_cpu(packet->y_len);
> > - int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
> > + int x, y, begin_x, begin_y, end_x, end_y, w, h;
> >
> > /* got touch data? */
> > if ((pkt[0] & 0xe0) != 0xe0)
> > @@ -1061,7 +1061,7 @@ static int nexio_read_data(struct usbtouch_usb
> > *usbtouch, unsigned char *pkt)
> > x_len -= 0x80;
> >
> > /* send ACK */
> > - ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
> > + usb_submit_urb(priv->ack, GFP_ATOMIC);
>
> I thought you were going to add error handling here?
Hmm... I thought I handed all of the review comments!
Will look into this again on Monday.
> > if (!usbtouch->type->max_xc) {
> > usbtouch->type->max_xc = 2 * x_len;
>
> Thanks.
>
--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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