drm: Convert to devm_ioremap_resource()

Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 9537761931ee..36493ce71f9a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -913,11 +913,9 @@ static int fimd_probe(struct platform_device *pdev)
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-        ctx->regs = devm_request_and_ioremap(&pdev->dev, res);
-        if (!ctx->regs) {
-                dev_err(dev, "failed to map registers\n");
-                return -ENXIO;
-        }
+        ctx->regs = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(ctx->regs))
+                return PTR_ERR(ctx->regs);
 
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (!res) {