On Sat, Dec 13, 2014 at 11:00:35AM -0800, Dmitry Torokhov wrote:
> On Tue, Dec 09, 2014 at 12:44:12PM -0200, Fabio Estevam wrote:
> > Commit af906faabcf91eb1 ("Input: gpio_keys - fix warning regarding uninitialized
> > 'irq' variable") introduced the following build warning:
> >
> > drivers/input/keyboard/gpio_keys.c:625:16: warning: 'button' may be used uninitialized in this function [-Wmaybe-uninitialized]
> >
> > Move the 'button' initialization to a proper location to avoid such warning.
>
> Doh! Why didn't I see the warning at least? Argh!
>
> Applied, thank you.
>
> >
> > Reported-by: Olof's autobuilder <build@xxxxxxxxx>
> > Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
> > ---
> > drivers/input/keyboard/gpio_keys.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
> > index fb8256f..28ac922 100644
> > --- a/drivers/input/keyboard/gpio_keys.c
> > +++ b/drivers/input/keyboard/gpio_keys.c
> > @@ -621,6 +621,8 @@ gpio_keys_get_devtree_pdata(struct device *dev)
> > int gpio = -1;
> > enum of_gpio_flags flags;
> >
> > + button = &pdata->buttons[i++];
> > +
> > if (!of_find_property(pp, "gpios", NULL)) {
> > button->irq = irq_of_parse_and_map(pp, 0);
> > if (button->irq == 0) {
By the way, I added
i--;
here to avoid skipping over one element.
> > @@ -640,8 +642,6 @@ gpio_keys_get_devtree_pdata(struct device *dev)
> > }
> > }
> >
> > - button = &pdata->buttons[i++];
> > -
> > button->gpio = gpio;
> > button->active_low = flags & OF_GPIO_ACTIVE_LOW;
> >
> > --
> > 1.9.1
> >
>
> --
> Dmitry
--
Dmitry
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