dma: 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: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index dbf0e6f8de8a..84ae49101407 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -14,6 +14,7 @@
  * http://www.opensource.org/licenses/gpl-license.html
  * http://www.gnu.org/copyleft/gpl.html
  */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -1011,9 +1012,9 @@ static int __init imxdma_probe(struct platform_device *pdev)
         imxdma->devtype = pdev->id_entry->driver_data;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        imxdma->base = devm_request_and_ioremap(&pdev->dev, res);
-        if (!imxdma->base)
-                return -EADDRNOTAVAIL;
+        imxdma->base = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(imxdma->base))
+                return PTR_ERR(imxdma->base);
 
         irq = platform_get_irq(pdev, 0);
         if (irq < 0)