dmaengine: at_xdmac: Use devm_platform_ioremap_resource() in at_xdmac_probe()

Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Link: https://lore.kernel.org/r/377247f3-b53a-a9d9-66c7-4b8515de3809@web.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index b58ac720d9a122099dd6f9c7e60f28cc215dc0dc..f71c9f77d40594e08f02642d73038ec1eadf4216 100644 (file)
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1957,21 +1957,16 @@ static int atmel_xdmac_resume(struct device *dev)
 
 static int at_xdmac_probe(struct platform_device *pdev)
 {
-       struct resource *res;
        struct at_xdmac *atxdmac;
        int             irq, size, nr_channels, i, ret;
        void __iomem    *base;
        u32             reg;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res)
-               return -EINVAL;
-
        irq = platform_get_irq(pdev, 0);
        if (irq < 0)
                return irq;
 
-       base = devm_ioremap_resource(&pdev->dev, res);
+       base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(base))
                return PTR_ERR(base);