[PATCH] mmc: cavium-octeon: Use devm_platform_ioremap_resource() in octeon_mmc_probe()

[Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Wed, 18 Sep 2019 14:20:34 +0200

Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/mmc/host/cavium-octeon.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c
index 22aded1065ae..916746c6c2c7 100644
--- a/drivers/mmc/host/cavium-octeon.c
+++ b/drivers/mmc/host/cavium-octeon.c
@@ -148,7 +148,6 @@ static int octeon_mmc_probe(struct platform_device *pdev)
 {
        struct device_node *cn, *node = pdev->dev.of_node;
        struct cvm_mmc_host *host;
-       struct resource *res;
        void __iomem *base;
        int mmc_irq[9];
        int i, ret = 0;
@@ -205,23 +204,13 @@ static int octeon_mmc_probe(struct platform_device *pdev)

        host->last_slot = -1;

-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               dev_err(&pdev->dev, "Platform resource[0] is missing\n");
-               return -ENXIO;
-       }
-       base = devm_ioremap_resource(&pdev->dev, res);
+       base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(base))
                return PTR_ERR(base);
        host->base = (void __iomem *)base;
        host->reg_off = 0;

-       res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-       if (!res) {
-               dev_err(&pdev->dev, "Platform resource[1] is missing\n");
-               return -EINVAL;
-       }
-       base = devm_ioremap_resource(&pdev->dev, res);
+       base = devm_platform_ioremap_resource(pdev, 1);
        if (IS_ERR(base))
                return PTR_ERR(base);
        host->dma_base = (void __iomem *)base;
--
2.23.0