dmaengine: jz4780: Use devm_platform_ioremap_resource() in jz4780_dma_probe()

Simplify this function implementation a bit by using
a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://lore.kernel.org/r/5dd19f28-349a-4957-ea3a-6aebbd7c97e2@web.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index cafb1cc..f42b3ef 100644 (file)
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -858,13 +858,7 @@ static int jz4780_dma_probe(struct platform_device *pdev)
        jzdma->soc_data = soc_data;
        platform_set_drvdata(pdev, jzdma);
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               dev_err(dev, "failed to get I/O memory\n");
-               return -EINVAL;
-       }
-
-       jzdma->chn_base = devm_ioremap_resource(dev, res);
+       jzdma->chn_base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(jzdma->chn_base))
                return PTR_ERR(jzdma->chn_base);