Re: [PATCH] powerpc: sysdev: simple_gpio: fix Oops in gpio save_regs function
From: Linus Walleij <hidden>
Date: 2017-05-29 09:37:51
Also in:
linux-gpio, lkml, stable
On Wed, May 24, 2017 at 10:01 AM, Christophe Leroy [off-list ref] wrote:
of_mm_gpiochip_add_data() generates an Oops for NULL pointer dereference.
of_mm_gpiochip_add_data() calls mm_gc->save_regs() before
setting the data, therefore ->save_regs() cannot use gpiochip_get_data()
Fixes: 937daafca774b ("powerpc: simple-gpio: use gpiochip data pointer")
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <redacted>Reviewed-by: Linus Walleij <redacted> Sorry for any screwups I've caused... Yours, Linus Walleij