Re: [PATCH] pinctrl: pinctrl-single: Convert to devm_ioremap_resource()

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Hi

On Tuesday 27 August 2013 05:49 PM, Sergei Shtylyov wrote:
Hello.

On 27-08-2013 11:05, Vishwanathrao Badarkhe, Manish wrote:

From: "Vishwanathrao Badarkhe, Manish" <manishv.b@xxxxxx>

Convert devm_request_mem_region() and devm_ioremap() to
devm_ioremap_resource() which provides more consistent
error handling to manage resource.

Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@xxxxxx>
---
:100644 100644 7323cca... b0fef18... M drivers/pinctrl/pinctrl-single.c
  drivers/pinctrl/pinctrl-single.c |   21 +++------------------
  1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 7323cca..b0fef18 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1556,24 +1556,9 @@ static int pcs_probe(struct platform_device *pdev)
                            "pinctrl-single,bit-per-mux");

      res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-    if (!res) {
-        dev_err(pcs->dev, "could not get resource\n");
-        return -ENODEV;
-    }
-
-    pcs->res = devm_request_mem_region(pcs->dev, res->start,
-            resource_size(res), DRIVER_NAME);
-    if (!pcs->res) {

   Is pcs->res used anywhere else?

My bad, I have not seen this variable is used in another functions too.

-        dev_err(pcs->dev, "could not get mem_region\n");
-        return -EBUSY;
-    }
-
-    pcs->size = resource_size(pcs->res);

   Is pcs->size used anywhere else?
My bad, I have not seen this variable is used in another functions too.

-    pcs->base = devm_ioremap(pcs->dev, pcs->res->start, pcs->size);
-    if (!pcs->base) {
-        dev_err(pcs->dev, "could not ioremap\n");
-        return -ENODEV;
-    }
+    pcs->base = devm_ioremap_resource(pcs->dev, res);
+    if (IS_ERR(pcs->base))
+        return PTR_ERR(pcs->base);

I will go through code again and update it accordingly.

Regards
Manish Badarkhe
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