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Date: Sun, 30 Sep 2012 09:38:45 +0530 From: anish kumar <anish198519851985@...il.com> To: Dan Carpenter <dan.carpenter@...cle.com> Cc: Anton Vorontsov <cbou@...l.ru>, David Woodhouse <dwmw2@...radead.org>, linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org Subject: Re: [patch] power: battery: pointer math issue in gab_probe() On Sat, 2012-09-29 at 10:13 +0300, Dan Carpenter wrote: > psy->properties is an enum (32 bit type) so adding sizeof() puts us > four times further along than we intended. It should be cast to a char > pointer before doing the math. You really read this driver to find out this one. Good one. > > Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com> > --- > Casting to void * would also work on GCC, at least. > > diff --git a/drivers/power/generic-adc-battery.c b/drivers/power/generic-adc-battery.c > index 9bdf444..776f118 100644 > --- a/drivers/power/generic-adc-battery.c > +++ b/drivers/power/generic-adc-battery.c > @@ -279,7 +279,8 @@ static int __devinit gab_probe(struct platform_device *pdev) > } > > memcpy(psy->properties, gab_props, sizeof(gab_props)); > - properties = psy->properties + sizeof(gab_props); > + properties = (enum power_supply_property *) > + ((char *)psy->properties + sizeof(gab_props)); > > /* > * getting channel from iio and copying the battery properties -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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