On 11 August 2018 at 09:34, Baolin Wang <baolin.wang@xxxxxxxxxx> wrote: > The devm_ioremap_resource() will valid the resources, thus remove the > unnecessary resource validation in the driver. > > Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx> Acked-by: Chunyan Zhang <chunyan.zhang@xxxxxxxxxxxxxx> > --- > drivers/tty/serial/sprd_serial.c | 7 ++----- > 1 file changed, 2 insertions(+), 5 deletions(-) > > diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c > index e18d8af..03b0cd4 100644 > --- a/drivers/tty/serial/sprd_serial.c > +++ b/drivers/tty/serial/sprd_serial.c > @@ -710,15 +710,12 @@ static int sprd_probe(struct platform_device *pdev) > up->uartclk = clk_get_rate(clk); > > res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > - if (!res) { > - dev_err(&pdev->dev, "not provide mem resource\n"); > - return -ENODEV; > - } > - up->mapbase = res->start; > up->membase = devm_ioremap_resource(&pdev->dev, res); > if (IS_ERR(up->membase)) > return PTR_ERR(up->membase); > > + up->mapbase = res->start; > + > irq = platform_get_irq(pdev, 0); > if (irq < 0) { > dev_err(&pdev->dev, "not provide irq resource: %d\n", irq); > -- > 1.9.1 >