On Thu, 12 Nov 2020, Dmitry Torokhov wrote: > On Thu, Nov 12, 2020 at 11:01:56AM +0000, 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 <dmitry.torokhov@xxxxxxxxx> > > Cc: Henrik Rydberg <rydberg@xxxxxxxxxxx> > > Cc: James Hilliard <james.hilliard1@xxxxxxxxx> > > Cc: Daniel Ritz <daniel.ritz@xxxxxx> > > Cc: linux-input@xxxxxxxxxxxxxxx > > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> > > --- > > 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 wonder if we should handle potential errors instead. Your call. I'll do whatever you decide. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
