Re: [patch 2/2] HID: sensors: remove some unneeded checks

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On Fri, 14 Sep 2012, Dan Carpenter wrote:

> "report_id" is unsigned so it's never less than zero.  These checks can
> be removed without any problem.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>

Adding Jonathan to CC as well. Thanks.

> 
> diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
> index 0c93b10..22ec3c6 100644
> --- a/drivers/hid/hid-sensor-hub.c
> +++ b/drivers/hid/hid-sensor-hub.c
> @@ -214,9 +214,6 @@ int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
>  	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
>  	int ret = 0;
>  
> -	if (report_id < 0)
> -		return -EINVAL;
> -
>  	mutex_lock(&data->mutex);
>  	report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
>  	if (!report || (field_index >=  report->maxfield)) {
> @@ -241,9 +238,6 @@ int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
>  	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
>  	int ret = 0;
>  
> -	if (report_id < 0)
> -		return -EINVAL;
> -
>  	mutex_lock(&data->mutex);
>  	report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
>  	if (!report || (field_index >=  report->maxfield)) {
> @@ -271,9 +265,6 @@ int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
>  	struct hid_report *report;
>  	int ret_val = 0;
>  
> -	if (report_id < 0)
> -		return -EINVAL;
> -
>  	mutex_lock(&data->mutex);
>  	memset(&data->pending, 0, sizeof(data->pending));
>  	init_completion(&data->pending.ready);
> 

-- 
Jiri Kosina
SUSE Labs
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