diff mbox series

[v3,4/9] driver core: Move true expression out of if condition in API driver_find_device()

Message ID 20241212-class_fix-v3-4-04e20c4f0971@quicinc.com
State Superseded
Headers show
Series driver core: class: Fix bug and code improvements for class APIs | expand

Commit Message

Zijun Hu Dec. 12, 2024, 1:38 p.m. UTC
From: Zijun Hu <quic_zijuhu@quicinc.com>

For driver_find_device(), get_device() in the if condition always returns
true, move it to if body to make the API's logic more clearer.

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
 drivers/base/driver.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Comments

Jonathan Cameron Dec. 16, 2024, 3:18 p.m. UTC | #1
On Thu, 12 Dec 2024 21:38:40 +0800
Zijun Hu <zijun_hu@icloud.com> wrote:

> From: Zijun Hu <quic_zijuhu@quicinc.com>
> 
> For driver_find_device(), get_device() in the if condition always returns
> true, move it to if body to make the API's logic more clearer.
> 
> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Though I think it would have been fine to have all these similar patches
as a single patch.

> ---
>  drivers/base/driver.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/base/driver.c b/drivers/base/driver.c
> index b4eb5b89c4ee7bc35458fc75730b16a6d1e804d3..6f033a741aa7ce6138d1c61e49e72b2a3eb85e06 100644
> --- a/drivers/base/driver.c
> +++ b/drivers/base/driver.c
> @@ -160,9 +160,12 @@ struct device *driver_find_device(const struct device_driver *drv,
>  
>  	klist_iter_init_node(&drv->p->klist_devices, &i,
>  			     (start ? &start->p->knode_driver : NULL));
> -	while ((dev = next_device(&i)))
> -		if (match(dev, data) && get_device(dev))
> +	while ((dev = next_device(&i))) {
> +		if (match(dev, data)) {
> +			get_device(dev);
>  			break;
> +		}
> +	}
>  	klist_iter_exit(&i);
>  	return dev;
>  }
>
Fan Ni Dec. 16, 2024, 6:01 p.m. UTC | #2
On Thu, Dec 12, 2024 at 09:38:40PM +0800, Zijun Hu wrote:
> From: Zijun Hu <quic_zijuhu@quicinc.com>
> 
> For driver_find_device(), get_device() in the if condition always returns
> true, move it to if body to make the API's logic more clearer.
> 
> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
> ---

This patch and the next patch can be squished into one patch.

Reviewed-by: Fan Ni <fan.ni@samsung.com>

>  drivers/base/driver.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/base/driver.c b/drivers/base/driver.c
> index b4eb5b89c4ee7bc35458fc75730b16a6d1e804d3..6f033a741aa7ce6138d1c61e49e72b2a3eb85e06 100644
> --- a/drivers/base/driver.c
> +++ b/drivers/base/driver.c
> @@ -160,9 +160,12 @@ struct device *driver_find_device(const struct device_driver *drv,
>  
>  	klist_iter_init_node(&drv->p->klist_devices, &i,
>  			     (start ? &start->p->knode_driver : NULL));
> -	while ((dev = next_device(&i)))
> -		if (match(dev, data) && get_device(dev))
> +	while ((dev = next_device(&i))) {
> +		if (match(dev, data)) {
> +			get_device(dev);
>  			break;
> +		}
> +	}
>  	klist_iter_exit(&i);
>  	return dev;
>  }
> 
> -- 
> 2.34.1
>
Zijun Hu Dec. 17, 2024, 2:13 p.m. UTC | #3
On 2024/12/17 02:01, Fan Ni wrote:
> On Thu, Dec 12, 2024 at 09:38:40PM +0800, Zijun Hu wrote:
>> From: Zijun Hu <quic_zijuhu@quicinc.com>
>>
>> For driver_find_device(), get_device() in the if condition always returns
>> true, move it to if body to make the API's logic more clearer.
>>
>> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
>> ---
> 
> This patch and the next patch can be squished into one patch.
> 
> Reviewed-by: Fan Ni <fan.ni@samsung.com>
> 

thank you Fan and Jonathan for code review.

good suggestion.
will squish the three similar changes into one in v4. (^^)(^^)

>>  drivers/base/driver.c | 7 +++++--
>>  1 file changed, 5 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/base/driver.c b/drivers/base/driver.c
>> index b4eb5b89c4ee7bc35458fc75730b16a6d1e804d3..6f033a741aa7ce6138d1c61e49e72b2a3eb85e06 100644
>> --- a/drivers/base/driver.c
>> +++ b/drivers/base/driver.c
>> @@ -160,9 +160,12 @@ struct device *driver_find_device(const struct device_driver *drv,
>>  
>>  	klist_iter_init_node(&drv->p->klist_devices, &i,
>>  			     (start ? &start->p->knode_driver : NULL));
>> -	while ((dev = next_device(&i)))
>> -		if (match(dev, data) && get_device(dev))
>> +	while ((dev = next_device(&i))) {
>> +		if (match(dev, data)) {
>> +			get_device(dev);
>>  			break;
>> +		}
>> +	}
>>  	klist_iter_exit(&i);
>>  	return dev;
>>  }
>>
>> -- 
>> 2.34.1
>>
>
diff mbox series

Patch

diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index b4eb5b89c4ee7bc35458fc75730b16a6d1e804d3..6f033a741aa7ce6138d1c61e49e72b2a3eb85e06 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -160,9 +160,12 @@  struct device *driver_find_device(const struct device_driver *drv,
 
 	klist_iter_init_node(&drv->p->klist_devices, &i,
 			     (start ? &start->p->knode_driver : NULL));
-	while ((dev = next_device(&i)))
-		if (match(dev, data) && get_device(dev))
+	while ((dev = next_device(&i))) {
+		if (match(dev, data)) {
+			get_device(dev);
 			break;
+		}
+	}
 	klist_iter_exit(&i);
 	return dev;
 }