MIPS: OCTEON: octeon-usb: Use devm_platform_get_and_ioremap_resource()

Remove unneeded error handling on the result of a call
to platform_get_resource() when the value is passed to
devm_ioremap_resource().

And use devm_platform_get_and_ioremap_resource() to simplify
code.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/cavium-octeon/octeon-usb.c b/arch/mips/cavium-octeon/octeon-usb.c
index 950e6c6..6e4d361 100644 (file)
--- a/arch/mips/cavium-octeon/octeon-usb.c
+++ b/arch/mips/cavium-octeon/octeon-usb.c
@@ -516,20 +516,13 @@ static int __init dwc3_octeon_device_init(void)
                        if (!pdev)
                                return -ENODEV;
 
-                       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-                       if (res == NULL) {
-                               put_device(&pdev->dev);
-                               dev_err(&pdev->dev, "No memory resources\n");
-                               return -ENXIO;
-                       }
-
                        /*
                         * The code below maps in the registers necessary for
                         * setting up the clocks and reseting PHYs. We must
                         * release the resources so the dwc3 subsystem doesn't
                         * know the difference.
                         */
-                       base = devm_ioremap_resource(&pdev->dev, res);
+                       base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
                        if (IS_ERR(base)) {
                                put_device(&pdev->dev);
                                return PTR_ERR(base);