Re: [PATCH] ACPI: Battery: Allow extract string from integer

["Rafael J. Wysocki" <rjw@sisk.pl>]

Hi,

On Monday, 29 October 2007 21:57, Len Brown wrote:
> Applied.
> 
> Andrey, Frans,
> thanks for helping with Alexey's patch this weekend.

Please let me know when it goes to Linus.

Thanks,
Rafael

 
> On Monday 29 October 2007 16:29, Alexey Starikovskiy wrote:
> > Some machines return integer instead of expected string.
> > 
> > Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
> > ---
> > 
> >  drivers/acpi/battery.c |   25 +++++++++++++++----------
> >  1 files changed, 15 insertions(+), 10 deletions(-)
> > 
> > diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
> > index 02a396d..6c06879 100644
> > --- a/drivers/acpi/battery.c
> > +++ b/drivers/acpi/battery.c
> > @@ -260,7 +260,7 @@ static int extract_package(struct acpi_battery *battery,
> >  			   union acpi_object *package,
> >  			   struct acpi_offsets *offsets, int num)
> >  {
> > -	int i, *x;
> > +	int i;
> >  	union acpi_object *element;
> >  	if (package->type != ACPI_TYPE_PACKAGE)
> >  		return -EFAULT;
> > @@ -269,16 +269,21 @@ static int extract_package(struct acpi_battery *battery,
> >  			return -EFAULT;
> >  		element = &package->package.elements[i];
> >  		if (offsets[i].mode) {
> > -			if (element->type != ACPI_TYPE_STRING &&
> > -			    element->type != ACPI_TYPE_BUFFER)
> > -				return -EFAULT;
> > -			strncpy((u8 *)battery + offsets[i].offset,
> > -				element->string.pointer, 32);
> > +			u8 *ptr = (u8 *)battery + offsets[i].offset;
> > +			if (element->type == ACPI_TYPE_STRING ||
> > +			    element->type == ACPI_TYPE_BUFFER)
> > +				strncpy(ptr, element->string.pointer, 32);
> > +			else if (element->type == ACPI_TYPE_INTEGER) {
> > +				strncpy(ptr, (u8 *)&element->integer.value,
> > +					sizeof(acpi_integer));
> > +				ptr[sizeof(acpi_integer)] = 0;
> > +			} else return -EFAULT;
> >  		} else {
> > -			if (element->type != ACPI_TYPE_INTEGER)
> > -				return -EFAULT;
> > -			x = (int *)((u8 *)battery + offsets[i].offset);
> > -			*x = element->integer.value;
> > +			if (element->type == ACPI_TYPE_INTEGER) {
> > +				int *x = (int *)((u8 *)battery +
> > +						offsets[i].offset);
> > +				*x = element->integer.value;
> > +			} else return -EFAULT;
> >  		}
> >  	}
> >  	return 0;
> > 
> > -
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