[PATCH -next] rtc: pcf8523: Use PTR_ERR_OR_ZERO() to simplify code

[PATCH -next] rtc: pcf8523: Use PTR_ERR_OR_ZERO() to simplify code

[Samuel Zou]

Fixes coccicheck warning:

drivers/rtc/rtc-pcf8523.c:361:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
---
 drivers/rtc/rtc-pcf8523.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
index 47e0f41..da8889a 100644
--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -358,10 +358,8 @@ static int pcf8523_probe(struct i2c_client *client,
 
 	rtc = devm_rtc_device_register(&client->dev, DRIVER_NAME,
 				       &pcf8523_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc))
-		return PTR_ERR(rtc);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(rtc);
 }
 
 static const struct i2c_device_id pcf8523_id[] = {
-- 
2.6.2

Re: [PATCH -next] rtc: pcf8523: Use PTR_ERR_OR_ZERO() to simplify code

[Alexandre Belloni]

Hi,

On 06/05/2020 17:34:00+0800, Samuel Zou wrote:
> Fixes coccicheck warning:
> 
> drivers/rtc/rtc-pcf8523.c:361:1-3: WARNING: PTR_ERR_OR_ZERO can be used
> 

I'm not taking this change because it is useless and will have to be
revert as soon as the probe function changes (and it will).

Does it really simplifies the code? I very much doubt so.

> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Samuel Zou <zou_wei@huawei.com>
> ---
>  drivers/rtc/rtc-pcf8523.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
> index 47e0f41..da8889a 100644
> --- a/drivers/rtc/rtc-pcf8523.c
> +++ b/drivers/rtc/rtc-pcf8523.c
> @@ -358,10 +358,8 @@ static int pcf8523_probe(struct i2c_client *client,
>  
>  	rtc = devm_rtc_device_register(&client->dev, DRIVER_NAME,
>  				       &pcf8523_rtc_ops, THIS_MODULE);
> -	if (IS_ERR(rtc))
> -		return PTR_ERR(rtc);
>  
> -	return 0;
> +	return PTR_ERR_OR_ZERO(rtc);
>  }
>  
>  static const struct i2c_device_id pcf8523_id[] = {
> -- 
> 2.6.2
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com