X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=drivers%2Fstaging%2Fiio%2Fadc%2Fad7606_par.c;h=7511839ba94e9ec538efa54178f0cd31aa71482f;hb=744966d6dc7d9945d8b9cc511d98a0ec5aeee9ed;hp=8a48d18de788de8731d9d7201529049e469bd9f8;hpb=49f681fab6a1e8e9d354bba692ba17cdcaa1fb1e;p=cascardo%2Flinux.git

diff --git a/drivers/staging/iio/adc/ad7606_par.c b/drivers/staging/iio/adc/ad7606_par.c
index 8a48d18de788..7511839ba94e 100644
--- a/drivers/staging/iio/adc/ad7606_par.c
+++ b/drivers/staging/iio/adc/ad7606_par.c
@@ -53,7 +53,7 @@ static int ad7606_par_probe(struct platform_device *pdev)
 	struct iio_dev *indio_dev;
 	void __iomem *addr;
 	resource_size_t remap_size;
-	int ret, irq;
+	int irq;
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -62,56 +62,31 @@ static int ad7606_par_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
+	addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(addr))
+		return PTR_ERR(addr);
 
 	remap_size = resource_size(res);
 
-	/* Request the regions */
-	if (!request_mem_region(res->start, remap_size, "iio-ad7606")) {
-		ret = -EBUSY;
-		goto out1;
-	}
-	addr = ioremap(res->start, remap_size);
-	if (!addr) {
-		ret = -ENOMEM;
-		goto out1;
-	}
-
 	indio_dev = ad7606_probe(&pdev->dev, irq, addr,
 			  platform_get_device_id(pdev)->driver_data,
 			  remap_size > 1 ? &ad7606_par16_bops :
 			  &ad7606_par8_bops);
 
-	if (IS_ERR(indio_dev))  {
-		ret = PTR_ERR(indio_dev);
-		goto out2;
-	}
+	if (IS_ERR(indio_dev))
+		return PTR_ERR(indio_dev);
 
 	platform_set_drvdata(pdev, indio_dev);
 
 	return 0;
-
-out2:
-	iounmap(addr);
-out1:
-	release_mem_region(res->start, remap_size);
-
-	return ret;
 }
 
 static int ad7606_par_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct resource *res;
-	struct ad7606_state *st = iio_priv(indio_dev);
 
 	ad7606_remove(indio_dev, platform_get_irq(pdev, 0));
 
-	iounmap(st->base_address);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(res->start, resource_size(res));
-
 	return 0;
 }