On Tue, Jan 08, 2019 at 11:11:59PM -0800, Andrey Smirnov wrote:
> Port of a Linux commit 9e01e2d56db23485a75864b6aeee8e443f024ddb
>
> 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 <fabio.estevam@xxxxxxx>
> Cc: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver")
> Signed-off-by: Stefan Agner <stefan@xxxxxxxx>
> Acked-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> Tested-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
>
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> ---
> drivers/soc/imx/gpcv2.c | 15 ++++++++-------
> 1 file changed, 8 insertions(+), 7 deletions(-)
This file has been added in the last patch. Please squash this patch and
the next one into it.
Sascha
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