On Tue, 2014-01-14 at 14:45 -0400, Eduardo Valentin wrote:
> When registering a thermal zone, passing an invalid
> .governor_name via struct thermal_zone_params may
> create a thermal zone without a governor, when it
> is supposed to be the default governor.
> 
> This patch fixes this issue by assigning the
> default governor, whenever the zone has a governor
> set to NULL.
> 
please check if the patch at https://patchwork.kernel.org/patch/3730391/
fixes the same problem?

thanks,
rui

> Cc: Zhang Rui <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Reported-by: Wei Ni <[email protected]>
> Signed-off-by: Eduardo Valentin <[email protected]>
> ---
>  drivers/thermal/thermal_core.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index a621e90..967d980 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -89,7 +89,7 @@ int thermal_register_governor(struct thermal_governor 
> *governor)
>       list_for_each_entry(pos, &thermal_tz_list, node) {
>               if (pos->governor)
>                       continue;
> -             if (pos->tzp)
> +             if (pos->tzp && pos->tzp->governor_name)
>                       name = pos->tzp->governor_name;
>               else
>                       name = DEFAULT_THERMAL_GOVERNOR;
> @@ -1527,9 +1527,10 @@ struct thermal_zone_device 
> *thermal_zone_device_register(const char *type,
>       /* Update 'this' zone's governor information */
>       mutex_lock(&thermal_governor_lock);
>  
> -     if (tz->tzp)
> +     if (tz->tzp && tz->tzp->governor_name)
>               tz->governor = __find_governor(tz->tzp->governor_name);
> -     else
> +
> +     if (!tz->governor)
>               tz->governor = __find_governor(DEFAULT_THERMAL_GOVERNOR);
>  
>       mutex_unlock(&thermal_governor_lock);


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to