Re: [PATCH] gpio: clamp returned values to the boolean range

[Joe Perches]

On Wed, 2014-03-05 at 09:49 +0800, Linus Walleij wrote:
> On Wed, Feb 26, 2014 at 9:40 AM, Alexandre Courbot <acourbot@xxxxxxxxxx> wrote:
> 
> > Nothing prevents GPIO drivers from returning values outside the
> > boolean range, and as it turns out a few drivers are actually doing so.
> > These values were passed as-is to unsuspecting consumers and created
> > confusion.
> >
> > This patch makes the internal _gpiod_get_raw_value() function return a
> > bool, effectively clamping the GPIO value to the boolean range no
> > matter what the driver does.
> 
> No, that will not be the semantic effect of this patch, bool is just
> another name for an int, maybe some static checkers will be able
> to use it however.

No, a bool is not an int.

It's really different.
include/linux/types.h:typedef _Bool                     bool;


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