On Fri, Jun 3, 2016 at 7:10 PM, Ricardo Ribalda Delgado <ricardo.riba...@gmail.com> wrote:
> Under some circumstances, a gpiochip might be half cleaned from the > gpio_device list. > > This patch makes sure that the chip pointer is still valid, before > calling the match function. > > [ 104.088296] BUG: unable to handle kernel NULL pointer dereference at > 0000000000000090 > [ 104.089772] IP: [<ffffffff813d2045>] of_gpiochip_find_and_xlate+0x15/0x80 > [ 104.128273] Call Trace: > [ 104.129802] [<ffffffff813d2030>] ? of_parse_own_gpio+0x1f0/0x1f0 > [ 104.131353] [<ffffffff813cd910>] gpiochip_find+0x60/0x90 > [ 104.132868] [<ffffffff813d21ba>] of_get_named_gpiod_flags+0x9a/0x120 > ... > [ 104.141586] [<ffffffff8163d12b>] gpio_led_probe+0x11b/0x360 > > Signed-off-by: Ricardo Ribalda Delgado <ricardo.riba...@gmail.com> Oh there is the fix that Roger and Grygorii needs. Applied to fixes and tagged for stable. Sorry for screwing things up :( Yours, Linus Walleij
