lkml.org 
[lkml]   [2016]   [Jun]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3] gpio: sch: Fix Oops on module load on Asus Eee PC 1201
On Sat, Jun 18, 2016 at 07:05:04PM +0100, Colin Pitrat wrote:
> This fixes the issue descirbe in bug 117531
> (https://bugzilla.kernel.org/show_bug.cgi?id=117531).
> It's a regression introduced in linux 4.5 that causes a Oops at load of
> gpio_sch and prevents powering off the computer.
>
> The issue is that sch_gpio_reg_set is called in sch_gpio_probe before
> gpio_chip data is initialized with the pointer to the sch_gpio struct. As
> sch_gpio_reg_set calls gpiochip_get_data, it returns NULL which causes
> the Oops.
>
> The patch follows Mika's advice (https://lkml.org/lkml/2016/5/9/61) and
> consists in modifying sch_gpio_reg_get and sch_gpio_reg_set to take a
> sch_gpio struct directly instead of a gpio_chip, which avoids the call to
> gpiochip_get_data.
>
> Thanks Mika for your patience with me :-)
>
> Signed-off-by: Colin Pitrat <colin.pitrat@gmail.com>

Looks good now, thanks :)

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

\
 
 \ /
  Last update: 2016-06-20 10:21    [W:0.054 / U:0.716 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site