2013-05-13 15:19:07

by Laurent Navet

[permalink] [raw]
Subject: [PATCH] drivers: net: can: grcan: use devm_ioremap_resource()

Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.
dev_err() message is no more needed since it's already displayed in
devm_ioremap_resource().

Signed-off-by: Laurent Navet <[email protected]>
---
drivers/net/can/grcan.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index 17fbc7a..9e9d0d6 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -1683,10 +1683,9 @@ static int grcan_probe(struct platform_device *ofdev)
}

res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
- base = devm_request_and_ioremap(&ofdev->dev, res);
- if (!base) {
- dev_err(&ofdev->dev, "couldn't map IO resource\n");
- err = -EADDRNOTAVAIL;
+ base = devm_ioremap_resource(&ofdev->dev, res);
+ if (IS_ERR(base)) {
+ err = PTR_ERR(base);
goto exit_error;
}

--
1.7.10.4


2013-05-14 08:49:42

by Andreas Larsson

[permalink] [raw]
Subject: Re: [PATCH] drivers: net: can: grcan: use devm_ioremap_resource()

On 2013-05-13 17:27, Laurent Navet wrote:
> Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.
> dev_err() message is no more needed since it's already displayed in
> devm_ioremap_resource().
>
> Signed-off-by: Laurent Navet <[email protected]>
> ---
> drivers/net/can/grcan.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
> index 17fbc7a..9e9d0d6 100644
> --- a/drivers/net/can/grcan.c
> +++ b/drivers/net/can/grcan.c
> @@ -1683,10 +1683,9 @@ static int grcan_probe(struct platform_device *ofdev)
> }
>
> res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
> - base = devm_request_and_ioremap(&ofdev->dev, res);
> - if (!base) {
> - dev_err(&ofdev->dev, "couldn't map IO resource\n");
> - err = -EADDRNOTAVAIL;
> + base = devm_ioremap_resource(&ofdev->dev, res);
> + if (IS_ERR(base)) {
> + err = PTR_ERR(base);
> goto exit_error;
> }

Acked-by: Andreas Larsson <[email protected]>

2013-05-15 09:12:26

by Marc Kleine-Budde

[permalink] [raw]
Subject: Re: [PATCH] drivers: net: can: grcan: use devm_ioremap_resource()

On 05/13/2013 05:27 PM, Laurent Navet wrote:
> Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.
> dev_err() message is no more needed since it's already displayed in
> devm_ioremap_resource().
>
> Signed-off-by: Laurent Navet <[email protected]>

Tnx, applied to linux-can-next.

Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |


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2013-05-16 11:50:06

by Marc Kleine-Budde

[permalink] [raw]
Subject: Re: [PATCH] drivers: net: can: grcan: use devm_ioremap_resource()

On 05/15/2013 11:12 AM, Marc Kleine-Budde wrote:
> On 05/13/2013 05:27 PM, Laurent Navet wrote:
>> Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.
>> dev_err() message is no more needed since it's already displayed in
>> devm_ioremap_resource().
>>
>> Signed-off-by: Laurent Navet <[email protected]>
>
> Tnx, applied to linux-can-next.

The "IS_ERR(base)" ...

> + base = devm_ioremap_resource(&ofdev->dev, res);
> + if (IS_ERR(base)) {
> + err = PTR_ERR(base);
> goto exit_error;
> }

... introduces this sparse warning:

> drivers/net/can/grcan.c:1687:20: warning: incorrect type in argument 1 (different address spaces)
> drivers/net/can/grcan.c:1687:20: expected void const *ptr
> drivers/net/can/grcan.c:1687:20: got void [noderef] <asn:2>*[assigned] base
> drivers/net/can/grcan.c:1688:31: warning: incorrect type in argument 1 (different address spaces)
> drivers/net/can/grcan.c:1688:31: expected void const *ptr
> drivers/net/can/grcan.c:1688:31: got void [noderef] <asn:2>*[assigned] base

I think it's the __iomem annotation of the void pointer that
devm_ioremap_resource() returns. Is there a clever way to improve IS_ERR
and PTR_ERR?

Marc

--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |


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