Messages in this thread | | | Date | Thu, 2 Oct 2014 18:24:43 -0400 | From | Eduardo Valentin <> | Subject | Re: [PATCH 3/3] thermal: core: fix: Check return code of the ->get_max_state() callback |
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On Wed, Sep 24, 2014 at 10:27:12AM +0200, Lukasz Majewski wrote: > Without this check it was possible to execute cooling device binding code > even when wrong max cooling state was read. > > Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Rui, are you taking these patches? Do you prefer me to collect them?
Cheers
Eduardo
> --- > drivers/thermal/thermal_core.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c > index 747618a..8a4dc35 100644 > --- a/drivers/thermal/thermal_core.c > +++ b/drivers/thermal/thermal_core.c > @@ -928,7 +928,7 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz, > struct thermal_zone_device *pos1; > struct thermal_cooling_device *pos2; > unsigned long max_state = 0; > - int result; > + int result, ret; > > if (trip >= tz->trips || (trip < 0 && trip != THERMAL_TRIPS_NONE)) > return -EINVAL; > @@ -945,7 +945,9 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz, > if (tz != pos1 || cdev != pos2) > return -EINVAL; > > - cdev->ops->get_max_state(cdev, &max_state); > + ret = cdev->ops->get_max_state(cdev, &max_state); > + if (ret) > + return ret; > > /* lower default 0, upper default max_state */ > lower = lower == THERMAL_NO_LIMIT ? 0 : lower; > -- > 2.0.0.rc2 >
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