serial: sprd: Remove unnecessary resource validation

The devm_ioremap_resource() will valid the resources, thus remove the
unnecessary resource validation in the driver.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Acked-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index e18d8af..03b0cd4 100644 (file)
--- 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);