Re: [patch] hwmon: using wrong ARRAY_SIZE() limit

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On Thu, Jul 18, 2013 at 05:41:08PM +0200, walter harms wrote:
> 
> 
> Am 18.07.2013 01:36, schrieb Guenter Roeck:
> > On Wed, Jul 17, 2013 at 03:26:14PM +0300, Dan Carpenter wrote:
> >> We cleaned up this code to use ARRAY_SIZE() instead of just the number
> >> 4.  The problem is that data->reg_temp[] has 5 elements and we actually
> >> wanted ARRAY_SIZE(data->temp) which has 4 elements.
> >>
> >> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> >>
> > Hi Dan,
> > 
> > good catch, except that the array size of data->temp[] should be 5, not 4.
> > So the real culprit is commit 7cbbd6a (Add support for critical low/high
> > temperature limits on NCT6106) which increased the size of reg_temp but not the
> > size of temp.
> > 
> > Do you want to send me a patch fixing that, or should I take care of it ?
> > 
> > Thanks,
> > Guenter
> 
> hi Guenther,
> is an array the way to go here ? To avoid that kind of problems they sould be
> connected some how. Is it possible to replace the array with a malloc() ?
> 
To clean it up I should probably add a define for the array sizes. A malloc
would be overkill.

Guenter

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