On Tue, Aug 6, 2019 at 10:02 PM Sylvain Lemieux <slemieux.tyco@xxxxxxxxx> wrote: > > > > + gpio_reg_base = devm_platform_ioremap_resource(pdev, 0); > > + if (gpio_reg_base) > > + return -ENXIO; > > The probe function will always return an error. > Please replace the previous 2 lines with: > if (IS_ERR(gpio_reg_base)) > return PTR_ERR(gpio_reg_base); > > You can add my acked-by and tested-by in the v2 patch. > Acked-by: Sylvain Lemieux <slemieux.tyco@xxxxxxxxx> > Tested-by: Sylvain Lemieux <slemieux.tyco@xxxxxxxxx> Ok, fixed now, along with addressing Bartosz' concerns. Arnd