media: imx7-media-csi: Use devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify the code a bit.

While at it, propagate the real error value in case of
devm_platform_ioremap_resource() failure.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index c0a626d..2dc2761 100644 (file)
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -1164,7 +1164,6 @@ static int imx7_csi_probe(struct platform_device *pdev)
        struct device_node *node = dev->of_node;
        struct imx_media_dev *imxmd;
        struct imx7_csi *csi;
-       struct resource *res;
        int ret;
 
        csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL);
@@ -1180,17 +1179,16 @@ static int imx7_csi_probe(struct platform_device *pdev)
                return ret;
        }
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        csi->irq = platform_get_irq(pdev, 0);
-       if (!res || csi->irq < 0) {
+       if (csi->irq < 0) {
                dev_err(dev, "Missing platform resources data\n");
                return -ENODEV;
        }
 
-       csi->regbase = devm_ioremap_resource(dev, res);
+       csi->regbase = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(csi->regbase)) {
                dev_err(dev, "Failed platform resources map\n");
-               return -ENODEV;
+               return PTR_ERR(csi->regbase);
        }
 
        spin_lock_init(&csi->irqlock);