diff mbox series

i2c: drivers: Remove superfluous error message

Message ID 20200504114408.9128-1-aishwaryarj100@gmail.com (mailing list archive)
State New, archived
Headers show
Series i2c: drivers: Remove superfluous error message | expand

Commit Message

Aishwarya Ramakrishnan May 4, 2020, 11:44 a.m. UTC
The function platform_get_irq can log an error by itself.
This omit a redundant message for exception handling in the
calling function.

Suggested by Coccinelle.

Signed-off-by: Aishwarya Ramakrishnan <aishwaryarj100@gmail.com>
---
 drivers/i2c/busses/i2c-altera.c   | 4 +---
 drivers/i2c/busses/i2c-cht-wc.c   | 4 +---
 drivers/i2c/busses/i2c-img-scb.c  | 4 +---
 drivers/i2c/busses/i2c-lpc2k.c    | 4 +---
 drivers/i2c/busses/i2c-uniphier.c | 4 +---
 5 files changed, 5 insertions(+), 15 deletions(-)

Comments

Andy Shevchenko May 4, 2020, 12:42 p.m. UTC | #1
On Mon, May 04, 2020 at 05:14:06PM +0530, Aishwarya Ramakrishnan wrote:
> The function platform_get_irq can log an error by itself.
> This omit a redundant message for exception handling in the
> calling function.

FWIW,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>


> Suggested by Coccinelle.

Compile tested only, right?

> 
> Signed-off-by: Aishwarya Ramakrishnan <aishwaryarj100@gmail.com>
> ---
>  drivers/i2c/busses/i2c-altera.c   | 4 +---
>  drivers/i2c/busses/i2c-cht-wc.c   | 4 +---
>  drivers/i2c/busses/i2c-img-scb.c  | 4 +---
>  drivers/i2c/busses/i2c-lpc2k.c    | 4 +---
>  drivers/i2c/busses/i2c-uniphier.c | 4 +---
>  5 files changed, 5 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-altera.c b/drivers/i2c/busses/i2c-altera.c
> index f5c00f903df3..af6985f0ae63 100644
> --- a/drivers/i2c/busses/i2c-altera.c
> +++ b/drivers/i2c/busses/i2c-altera.c
> @@ -395,10 +395,8 @@ static int altr_i2c_probe(struct platform_device *pdev)
>  		return PTR_ERR(idev->base);
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0) {
> -		dev_err(&pdev->dev, "missing interrupt resource\n");
> +	if (irq < 0)
>  		return irq;
> -	}
>  
>  	idev->i2c_clk = devm_clk_get(&pdev->dev, NULL);
>  	if (IS_ERR(idev->i2c_clk)) {
> diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c
> index 35e55feda763..343ae5754e6e 100644
> --- a/drivers/i2c/busses/i2c-cht-wc.c
> +++ b/drivers/i2c/busses/i2c-cht-wc.c
> @@ -314,10 +314,8 @@ static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev)
>  	int ret, reg, irq;
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0) {
> -		dev_err(&pdev->dev, "Error missing irq resource\n");
> +	if (irq < 0)
>  		return -EINVAL;
> -	}
>  
>  	adap = devm_kzalloc(&pdev->dev, sizeof(*adap), GFP_KERNEL);
>  	if (!adap)
> diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c
> index 422097a31c95..2f6de763816a 100644
> --- a/drivers/i2c/busses/i2c-img-scb.c
> +++ b/drivers/i2c/busses/i2c-img-scb.c
> @@ -1344,10 +1344,8 @@ static int img_i2c_probe(struct platform_device *pdev)
>  		return PTR_ERR(i2c->base);
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0) {
> -		dev_err(&pdev->dev, "can't get irq number\n");
> +	if (irq < 0)
>  		return irq;
> -	}
>  
>  	i2c->sys_clk = devm_clk_get(&pdev->dev, "sys");
>  	if (IS_ERR(i2c->sys_clk)) {
> diff --git a/drivers/i2c/busses/i2c-lpc2k.c b/drivers/i2c/busses/i2c-lpc2k.c
> index 13b0c12e2dba..43dc9b7043e4 100644
> --- a/drivers/i2c/busses/i2c-lpc2k.c
> +++ b/drivers/i2c/busses/i2c-lpc2k.c
> @@ -362,10 +362,8 @@ static int i2c_lpc2k_probe(struct platform_device *pdev)
>  		return PTR_ERR(i2c->base);
>  
>  	i2c->irq = platform_get_irq(pdev, 0);
> -	if (i2c->irq < 0) {
> -		dev_err(&pdev->dev, "can't get interrupt resource\n");
> +	if (i2c->irq < 0)
>  		return i2c->irq;
> -	}
>  
>  	init_waitqueue_head(&i2c->wait);
>  
> diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c
> index 668b1fa2b0ef..ee00a44bf4c7 100644
> --- a/drivers/i2c/busses/i2c-uniphier.c
> +++ b/drivers/i2c/busses/i2c-uniphier.c
> @@ -324,10 +324,8 @@ static int uniphier_i2c_probe(struct platform_device *pdev)
>  		return PTR_ERR(priv->membase);
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0) {
> -		dev_err(dev, "failed to get IRQ number\n");
> +	if (irq < 0)
>  		return irq;
> -	}
>  
>  	if (of_property_read_u32(dev->of_node, "clock-frequency", &bus_speed))
>  		bus_speed = I2C_MAX_STANDARD_MODE_FREQ;
> -- 
> 2.17.1
>
Andy Shevchenko May 4, 2020, 12:44 p.m. UTC | #2
On Mon, May 04, 2020 at 03:42:56PM +0300, Andy Shevchenko wrote:
> On Mon, May 04, 2020 at 05:14:06PM +0530, Aishwarya Ramakrishnan wrote:
> > The function platform_get_irq can log an error by itself.
> > This omit a redundant message for exception handling in the
> > calling function.
> 
> FWIW,
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Wolfram, I didn't notice any updates in your public tree. Do you have plans to
push them this week?
Masahiro Yamada May 4, 2020, 2:30 p.m. UTC | #3
On Mon, May 4, 2020 at 8:44 PM Aishwarya Ramakrishnan
<aishwaryarj100@gmail.com> wrote:
>
> The function platform_get_irq can log an error by itself.
> This omit a redundant message for exception handling in the
> calling function.
>
> Suggested by Coccinelle.
>
> Signed-off-by: Aishwarya Ramakrishnan <aishwaryarj100@gmail.com>
> ---
>  drivers/i2c/busses/i2c-altera.c   | 4 +---
>  drivers/i2c/busses/i2c-cht-wc.c   | 4 +---
>  drivers/i2c/busses/i2c-img-scb.c  | 4 +---
>  drivers/i2c/busses/i2c-lpc2k.c    | 4 +---
>  drivers/i2c/busses/i2c-uniphier.c | 4 +---


Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>


I see more drivers with the similar pattern, though.






>  5 files changed, 5 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-altera.c b/drivers/i2c/busses/i2c-altera.c
> index f5c00f903df3..af6985f0ae63 100644
> --- a/drivers/i2c/busses/i2c-altera.c
> +++ b/drivers/i2c/busses/i2c-altera.c
> @@ -395,10 +395,8 @@ static int altr_i2c_probe(struct platform_device *pdev)
>                 return PTR_ERR(idev->base);
>
>         irq = platform_get_irq(pdev, 0);
> -       if (irq < 0) {
> -               dev_err(&pdev->dev, "missing interrupt resource\n");
> +       if (irq < 0)
>                 return irq;
> -       }
>
>         idev->i2c_clk = devm_clk_get(&pdev->dev, NULL);
>         if (IS_ERR(idev->i2c_clk)) {
> diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c
> index 35e55feda763..343ae5754e6e 100644
> --- a/drivers/i2c/busses/i2c-cht-wc.c
> +++ b/drivers/i2c/busses/i2c-cht-wc.c
> @@ -314,10 +314,8 @@ static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev)
>         int ret, reg, irq;
>
>         irq = platform_get_irq(pdev, 0);
> -       if (irq < 0) {
> -               dev_err(&pdev->dev, "Error missing irq resource\n");
> +       if (irq < 0)
>                 return -EINVAL;
> -       }
>
>         adap = devm_kzalloc(&pdev->dev, sizeof(*adap), GFP_KERNEL);
>         if (!adap)
> diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c
> index 422097a31c95..2f6de763816a 100644
> --- a/drivers/i2c/busses/i2c-img-scb.c
> +++ b/drivers/i2c/busses/i2c-img-scb.c
> @@ -1344,10 +1344,8 @@ static int img_i2c_probe(struct platform_device *pdev)
>                 return PTR_ERR(i2c->base);
>
>         irq = platform_get_irq(pdev, 0);
> -       if (irq < 0) {
> -               dev_err(&pdev->dev, "can't get irq number\n");
> +       if (irq < 0)
>                 return irq;
> -       }
>
>         i2c->sys_clk = devm_clk_get(&pdev->dev, "sys");
>         if (IS_ERR(i2c->sys_clk)) {
> diff --git a/drivers/i2c/busses/i2c-lpc2k.c b/drivers/i2c/busses/i2c-lpc2k.c
> index 13b0c12e2dba..43dc9b7043e4 100644
> --- a/drivers/i2c/busses/i2c-lpc2k.c
> +++ b/drivers/i2c/busses/i2c-lpc2k.c
> @@ -362,10 +362,8 @@ static int i2c_lpc2k_probe(struct platform_device *pdev)
>                 return PTR_ERR(i2c->base);
>
>         i2c->irq = platform_get_irq(pdev, 0);
> -       if (i2c->irq < 0) {
> -               dev_err(&pdev->dev, "can't get interrupt resource\n");
> +       if (i2c->irq < 0)
>                 return i2c->irq;
> -       }
>
>         init_waitqueue_head(&i2c->wait);
>
> diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c
> index 668b1fa2b0ef..ee00a44bf4c7 100644
> --- a/drivers/i2c/busses/i2c-uniphier.c
> +++ b/drivers/i2c/busses/i2c-uniphier.c
> @@ -324,10 +324,8 @@ static int uniphier_i2c_probe(struct platform_device *pdev)
>                 return PTR_ERR(priv->membase);
>
>         irq = platform_get_irq(pdev, 0);
> -       if (irq < 0) {
> -               dev_err(dev, "failed to get IRQ number\n");
> +       if (irq < 0)
>                 return irq;
> -       }
>
>         if (of_property_read_u32(dev->of_node, "clock-frequency", &bus_speed))
>                 bus_speed = I2C_MAX_STANDARD_MODE_FREQ;
> --
> 2.17.1
>
Wolfram Sang May 5, 2020, 2:13 p.m. UTC | #4
On Mon, May 04, 2020 at 05:14:06PM +0530, Aishwarya Ramakrishnan wrote:
> The function platform_get_irq can log an error by itself.
> This omit a redundant message for exception handling in the
> calling function.
> 
> Suggested by Coccinelle.
> 
> Signed-off-by: Aishwarya Ramakrishnan <aishwaryarj100@gmail.com>

Sorry, I forgot that these are already fixed with
e42688ed5cf5936fb55c78cc365dbe0944af7c63 in i2c/for-next.
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-altera.c b/drivers/i2c/busses/i2c-altera.c
index f5c00f903df3..af6985f0ae63 100644
--- a/drivers/i2c/busses/i2c-altera.c
+++ b/drivers/i2c/busses/i2c-altera.c
@@ -395,10 +395,8 @@  static int altr_i2c_probe(struct platform_device *pdev)
 		return PTR_ERR(idev->base);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "missing interrupt resource\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	idev->i2c_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(idev->i2c_clk)) {
diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c
index 35e55feda763..343ae5754e6e 100644
--- a/drivers/i2c/busses/i2c-cht-wc.c
+++ b/drivers/i2c/busses/i2c-cht-wc.c
@@ -314,10 +314,8 @@  static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev)
 	int ret, reg, irq;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "Error missing irq resource\n");
+	if (irq < 0)
 		return -EINVAL;
-	}
 
 	adap = devm_kzalloc(&pdev->dev, sizeof(*adap), GFP_KERNEL);
 	if (!adap)
diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c
index 422097a31c95..2f6de763816a 100644
--- a/drivers/i2c/busses/i2c-img-scb.c
+++ b/drivers/i2c/busses/i2c-img-scb.c
@@ -1344,10 +1344,8 @@  static int img_i2c_probe(struct platform_device *pdev)
 		return PTR_ERR(i2c->base);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "can't get irq number\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	i2c->sys_clk = devm_clk_get(&pdev->dev, "sys");
 	if (IS_ERR(i2c->sys_clk)) {
diff --git a/drivers/i2c/busses/i2c-lpc2k.c b/drivers/i2c/busses/i2c-lpc2k.c
index 13b0c12e2dba..43dc9b7043e4 100644
--- a/drivers/i2c/busses/i2c-lpc2k.c
+++ b/drivers/i2c/busses/i2c-lpc2k.c
@@ -362,10 +362,8 @@  static int i2c_lpc2k_probe(struct platform_device *pdev)
 		return PTR_ERR(i2c->base);
 
 	i2c->irq = platform_get_irq(pdev, 0);
-	if (i2c->irq < 0) {
-		dev_err(&pdev->dev, "can't get interrupt resource\n");
+	if (i2c->irq < 0)
 		return i2c->irq;
-	}
 
 	init_waitqueue_head(&i2c->wait);
 
diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c
index 668b1fa2b0ef..ee00a44bf4c7 100644
--- a/drivers/i2c/busses/i2c-uniphier.c
+++ b/drivers/i2c/busses/i2c-uniphier.c
@@ -324,10 +324,8 @@  static int uniphier_i2c_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->membase);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(dev, "failed to get IRQ number\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	if (of_property_read_u32(dev->of_node, "clock-frequency", &bus_speed))
 		bus_speed = I2C_MAX_STANDARD_MODE_FREQ;