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/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index c6d98c00f05c..dc7466563507 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -5,6 +5,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -782,9 +783,9 @@ static int mmp_pdma_probe(struct platform_device *op)
         if (!iores)
                 return -EINVAL;
 
-        pdev->base = devm_request_and_ioremap(pdev->dev, iores);
-        if (!pdev->base)
-                return -EADDRNOTAVAIL;
+        pdev->base = devm_ioremap_resource(pdev->dev, iores);
+        if (IS_ERR(pdev->base))
+                return PTR_ERR(pdev->base);
 
         of_id = of_match_device(mmp_pdma_dt_ids, pdev->dev);
         if (of_id)