lkml.org 
[lkml]   [2008]   [Feb]   [19]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateWed, 20 Feb 2008 02:26:14 +0200
FromAdrian Bunk <>
SubjectRe: [2.6 patch] drivers/thermal/thermal.c: fix a check-after-use
On Tue, Feb 19, 2008 at 04:25:02PM -0800, Harvey Harrison wrote:
> On Wed, 2008-02-20 at 02:14 +0200, Adrian Bunk wrote:
> > This patch fixes a check-after-use spotted by the Coverity checker.
> > 
> > Signed-off-by: Adrian Bunk <bunk@kernel.org>
> > 
> > ---
> > 570462ca4441d8d63dfd46efe6e5b2b1c251a611 diff --git a/drivers/thermal/thermal.c b/drivers/thermal/thermal.c
> > index e782b3e..958654b 100644
> > --- a/drivers/thermal/thermal.c
> > +++ b/drivers/thermal/thermal.c
> > @@ -308,10 +308,10 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
> >  	struct thermal_cooling_device_instance *pos;
> >  	int result;
> > 
> > -	if (trip >= tz->trips || (trip < 0 && trip != THERMAL_TRIPS_NONE))
> > +	if (!tz || !cdev)
> >  		return -EINVAL;
> > 
> > -	if (!tz || !cdev)
> > +	if (trip >= tz->trips || (trip < 0 && trip != THERMAL_TRIPS_NONE))
> >  		return -EINVAL;
> > 
> 
> How about:
> 	if (!tz || !cdev || trip >= tz->trips ||
> 	    (trip < 0 && trip != THERMAL_TRIPS_NONE))
> 		return -EINVAL;

I have no strong opinion about it, but I'd consider your suggestion less 
readable.

> Cheers,
> 
> Harvey

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed



\
 
 \ /
  Last update: 2008-02-20 01:29    [from the cache]
©2003-2008