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

From: Sergei Shtylyov
Date: Tue Aug 27 2013 - 08:19:27 EST


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?

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

Is pcs->size used anywhere else?

- 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);

WBR, Sergei

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