Patchwork [08/33] drivers/i2c/busses: don't check resource with devm_ioremap_resource

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Submitter Wolfram Sang
Date May 16, 2013, 11:15 a.m.
Message ID <1368702961-4325-9-git-send-email-wsa@the-dreams.de>
Download mbox | patch
Permalink /patch/244286/
State Awaiting Upstream
Headers show

Comments

Wolfram Sang - May 16, 2013, 11:15 a.m.
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-s3c2410.c |    5 -----
 drivers/i2c/busses/i2c-sirf.c    |    6 ------
 drivers/i2c/busses/i2c-tegra.c   |    5 -----
 3 files changed, 16 deletions(-)
Barry Song - May 16, 2013, 12:22 p.m.
2013/5/16 Wolfram Sang <wsa@the-dreams.de>:
> devm_ioremap_resource does sanity checks on the given resource. No need to
> duplicate this in the driver.
>
> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

Acked-by: Barry Song <Baohua.Song@csr.com>

-barry
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Kukjin Kim - May 20, 2013, 4:40 p.m.
On 05/16/13 20:15, Wolfram Sang wrote:
> devm_ioremap_resource does sanity checks on the given resource. No need to
> duplicate this in the driver.
>
> Signed-off-by: Wolfram Sang<wsa@the-dreams.de>

For i2c-s3c2410:
Acked-by: Kukjin Kim <kgene.kim@samsung.com>

Thanks.

- Kukjin

> ---
>   drivers/i2c/busses/i2c-s3c2410.c |    5 -----
>   drivers/i2c/busses/i2c-sirf.c    |    6 ------
>   drivers/i2c/busses/i2c-tegra.c   |    5 -----
>   3 files changed, 16 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
> index 6e8ee92..cab1c91 100644
> --- a/drivers/i2c/busses/i2c-s3c2410.c
> +++ b/drivers/i2c/busses/i2c-s3c2410.c
> @@ -1082,11 +1082,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
>   	/* map the registers */
>
>   	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (res == NULL) {
> -		dev_err(&pdev->dev, "cannot find IO resource\n");
> -		return -ENOENT;
> -	}
> -
>   	i2c->regs = devm_ioremap_resource(&pdev->dev, res);
>
>   	if (IS_ERR(i2c->regs))
> diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
> index 5a7ad24..a63c7d5 100644
> --- a/drivers/i2c/busses/i2c-sirf.c
> +++ b/drivers/i2c/busses/i2c-sirf.c
> @@ -303,12 +303,6 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
>   	adap->class = I2C_CLASS_HWMON;
>
>   	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (mem_res == NULL) {
> -		dev_err(&pdev->dev, "Unable to get MEM resource\n");
> -		err = -EINVAL;
> -		goto out;
> -	}
> -
>   	siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
>   	if (IS_ERR(siic->base)) {
>   		err = PTR_ERR(siic->base);
> diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
> index b60ff90..9aa1b60 100644
> --- a/drivers/i2c/busses/i2c-tegra.c
> +++ b/drivers/i2c/busses/i2c-tegra.c
> @@ -714,11 +714,6 @@ static int tegra_i2c_probe(struct platform_device *pdev)
>   	int ret = 0;
>
>   	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res) {
> -		dev_err(&pdev->dev, "no mem resource\n");
> -		return -EINVAL;
> -	}
> -
>   	base = devm_ioremap_resource(&pdev->dev, res);
>   	if (IS_ERR(base))
>   		return PTR_ERR(base);
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Patch

diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 6e8ee92..cab1c91 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1082,11 +1082,6 @@  static int s3c24xx_i2c_probe(struct platform_device *pdev)
 	/* map the registers */
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "cannot find IO resource\n");
-		return -ENOENT;
-	}
-
 	i2c->regs = devm_ioremap_resource(&pdev->dev, res);
 
 	if (IS_ERR(i2c->regs))
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index 5a7ad24..a63c7d5 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -303,12 +303,6 @@  static int i2c_sirfsoc_probe(struct platform_device *pdev)
 	adap->class = I2C_CLASS_HWMON;
 
 	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (mem_res == NULL) {
-		dev_err(&pdev->dev, "Unable to get MEM resource\n");
-		err = -EINVAL;
-		goto out;
-	}
-
 	siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
 	if (IS_ERR(siic->base)) {
 		err = PTR_ERR(siic->base);
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index b60ff90..9aa1b60 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -714,11 +714,6 @@  static int tegra_i2c_probe(struct platform_device *pdev)
 	int ret = 0;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "no mem resource\n");
-		return -EINVAL;
-	}
-
 	base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);