Use the managed variant of request_mem_region().

Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
---

 drivers/mmc/host/sdhci-pltfm.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 3354a53..e4da44a 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -158,8 +158,9 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device 
*pdev,
                goto err_request;
        }
 
-       if (!request_mem_region(iomem->start, resource_size(iomem),
-               mmc_hostname(host->mmc))) {
+       if (!devm_request_mem_region(&pdev->dev, iomem->start,
+                                    resource_size(iomem),
+                                    mmc_hostname(host->mmc))) {
                dev_err(&pdev->dev, "cannot request region\n");
                ret = -EBUSY;
                goto err_request;
@@ -169,7 +170,7 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device 
*pdev,
        if (!host->ioaddr) {
                dev_err(&pdev->dev, "failed to remap registers\n");
                ret = -ENOMEM;
-               goto err_remap;
+               goto err_request;
        }
 
        /*
@@ -183,8 +184,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device 
*pdev,
 
        return host;
 
-err_remap:
-       release_mem_region(iomem->start, resource_size(iomem));
 err_request:
        sdhci_free_host(host);
 err:
@@ -196,10 +195,8 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_init);
 void sdhci_pltfm_free(struct platform_device *pdev)
 {
        struct sdhci_host *host = platform_get_drvdata(pdev);
-       struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
        iounmap(host->ioaddr);
-       release_mem_region(iomem->start, resource_size(iomem));
        sdhci_free_host(host);
 }
 EXPORT_SYMBOL_GPL(sdhci_pltfm_free);
-- 
1.9.1

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