On Wed, Aug 2, 2017 at 12:51 PM, Stefan Agner <[email protected]> wrote: > If a regulator requests a deferred probe, the power domain gets > initialized twice. This leads to a list double add (without > list debugging the kernel hangs due to the double add later): > > WARNING: CPU: 0 PID: 19 at lib/list_debug.c:31 __list_add_valid+0xbc/0xc4 > list_add double add: new=c1229754, prev=c12383b4, next=c1229754. > > Initialize the power domain after we get the regulator. Also do > not print an error in case the regulator defers probing. > > Cc: Fabio Estevam <[email protected]> > Cc: Andrey Smirnov <[email protected]> > Cc: [email protected] > Cc: [email protected] > Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver") > Signed-off-by: Stefan Agner <[email protected]>
As the author of original bug: Acked-by: Andrey Smirnov <[email protected]> I also went ahead and tested PCIe on my SabreSD with Intel Gigabit adapter, so Tested-by: Andrey Smirnov <[email protected]> Thanks for debugging and fixing this! Andrey Smirnov
