[PATCH 1/9] gpiolib: Fix possible use of wrong name
Markus Pargmann
mpa at pengutronix.de
Tue Jul 28 23:46:54 PDT 2015
On Tue, Jul 28, 2015 at 11:03:31AM +0200, Johan Hovold wrote:
> On Fri, Jul 17, 2015 at 11:32:42AM +0200, Markus Pargmann wrote:
> > The name is set optionally from DT. Therefore we need to reset the name
> > variable for every loop iteration. Otherwise we could use a wrong or
> > uninitialized name.
>
> This doesn't make sense. of_get_gpio_hog falls back to using the node
> name so name will always be updated (unless there's an error).
>
> Could be better documented, though.
Thanks, just got the two lines wrong. Yes the name is always set
correctly.
Will fix it.
Best regards,
Markus
>
> > Signed-off-by: Markus Pargmann <mpa at pengutronix.de>
> > ---
> > drivers/gpio/gpiolib-of.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
> > index 9a0ec48a4737..60aebe4d7c26 100644
> > --- a/drivers/gpio/gpiolib-of.c
> > +++ b/drivers/gpio/gpiolib-of.c
> > @@ -209,11 +209,11 @@ static void of_gpiochip_scan_hogs(struct gpio_chip *chip)
> > {
> > struct gpio_desc *desc = NULL;
> > struct device_node *np;
> > - const char *name;
> > enum gpio_lookup_flags lflags;
> > enum gpiod_flags dflags;
> >
> > for_each_child_of_node(chip->of_node, np) {
> > + const char *name = NULL;
> > if (!of_property_read_bool(np, "gpio-hog"))
> > continue;
>
> Johan
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20150729/d49f77bb/attachment.sig>
More information about the linux-arm-kernel
mailing list