Re: powerpc: sysdev: simple_gpio: fix Oops in gpio save_regs function

2017-06-01 Thread Michael Ellerman
On Wed, 2017-05-24 at 08:01:55 UTC, Christophe Leroy 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

Re: [PATCH] powerpc: sysdev: simple_gpio: fix Oops in gpio save_regs function

2017-05-29 Thread Linus Walleij
On Wed, May 24, 2017 at 10:01 AM, Christophe Leroy 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 (

[PATCH] powerpc: sysdev: simple_gpio: fix Oops in gpio save_regs function

2017-05-24 Thread Christophe Leroy
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: sta...@vger.ker