Re: [PATCH v3 06/22] ACPI: platform_profile: Move sanity check out of the mutex

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On Thu, Oct 31, 2024, at 12:09 AM, Mario Limonciello wrote:
> The sanity check that the platform handler had choices set doesn't
> need the mutex taken.  Move it to earlier in the registration.
>
> Tested-by: Matthew Schwartz <matthew.schwartz@xxxxxxxxx>
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> ---
>  drivers/acpi/platform_profile.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/acpi/platform_profile.c 
> b/drivers/acpi/platform_profile.c
> index d0198d2ccb551..f2f2274e4d83e 100644
> --- a/drivers/acpi/platform_profile.c
> +++ b/drivers/acpi/platform_profile.c
> @@ -180,6 +180,12 @@ int platform_profile_register(struct 
> platform_profile_handler *pprof)
>  {
>  	int err;
> 
> +	/* Sanity check the profile handler */
> +	if (!pprof || bitmap_empty(pprof->choices, PLATFORM_PROFILE_LAST) ||
> +	    !pprof->profile_set || !pprof->profile_get) {
> +		pr_err("platform_profile: handler is invalid\n");
> +		return -EINVAL;
> +	}
>  	if (!pprof->dev) {
>  		pr_err("platform_profile: handler device is not set\n");
>  		return -EINVAL;
> @@ -192,13 +198,6 @@ int platform_profile_register(struct 
> platform_profile_handler *pprof)
>  		return -EEXIST;
>  	}
> 
> -	/* Sanity check the profile handler field are set */
> -	if (!pprof || bitmap_empty(pprof->choices, PLATFORM_PROFILE_LAST) ||
> -		!pprof->profile_set || !pprof->profile_get) {
> -		mutex_unlock(&profile_lock);
> -		return -EINVAL;
> -	}
> -
>  	err = sysfs_create_group(acpi_kobj, &platform_profile_group);
>  	if (err) {
>  		mutex_unlock(&profile_lock);
> -- 
> 2.43.0

Looks good to me.
Reviewed-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>

Mark


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