linux-kernel - Re: [PATCH] platform/x86: hp-wmi: simplify the return expression of platform_profile_omen

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Fri, 6 May 2022 12:18:39 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     cgel.zte@...il.com
Cc:     markgross@...nel.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org, Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] platform/x86: hp-wmi: simplify the return expression of
 platform_profile_omen_set()

Hi,

On 5/5/22 04:19, cgel.zte@...il.com wrote:
> From: Minghao Chi <chi.minghao@....com.cn>
> 
> Simplify the return expression.
> 
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Minghao Chi <chi.minghao@....com.cn>

omen_thermal_profile_set(tp) returns the value of tp on
success which is not necessarily always 0, so this
patch is invalid.

Regards,

Hans



> ---
>  drivers/platform/x86/hp-wmi.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
> index 667f94bba905..9edb1f877189 100644
> --- a/drivers/platform/x86/hp-wmi.c
> +++ b/drivers/platform/x86/hp-wmi.c
> @@ -1119,7 +1119,7 @@ static int platform_profile_omen_get(struct platform_profile_handler *pprof,
>  static int platform_profile_omen_set(struct platform_profile_handler *pprof,
>  				     enum platform_profile_option profile)
>  {
> -	int err, tp, tp_version;
> +	int tp, tp_version;
>  
>  	tp_version = omen_get_thermal_policy_version();
>  
> @@ -1149,11 +1149,7 @@ static int platform_profile_omen_set(struct platform_profile_handler *pprof,
>  		return -EOPNOTSUPP;
>  	}
>  
> -	err = omen_thermal_profile_set(tp);
> -	if (err < 0)
> -		return err;
> -
> -	return 0;
> +	return omen_thermal_profile_set(tp);
>  }
>  
>  static int thermal_profile_get(void)