Messages in this thread | | | From | Arnd Bergmann <> | Date | Tue, 15 Aug 2017 17:36:19 +0200 | Subject | Re: [PATCH] soc: imx: gpcv2: fix regulator deferred probe |
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On Mon, Aug 14, 2017 at 7:35 AM, Shawn Guo <shawnguo@kernel.org> wrote: > On Sun, Aug 13, 2017 at 10:12:13PM -0700, Stefan Agner wrote: >> Hi Shawn, >> >> On 2017-08-04 20:13, Shawn Guo wrote: >> > On Wed, Aug 02, 2017 at 12:51:29PM -0700, Stefan Agner 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 <fabio.estevam@nxp.com> >> >> Cc: Andrey Smirnov <andrew.smirnov@gmail.com> >> >> Cc: linux-arm-kernel@lists.infradead.org >> >> Cc: linux-kernel@vger.kernel.org >> >> Fixes: 03aa12629fc4 ("soc: imx: Add GPCv2 power gating driver") >> >> Signed-off-by: Stefan Agner <stefan@agner.ch> >> > >> > Applied, thanks. >> >> As of 4.13-rc5 this did not make it upstream yet, I guess still on its >> way? > > Yes, Stefan. It's on the way to arm-soc [1], but not yet responded. > > Shawn > > [1] https://www.spinics.net/lists/arm-kernel/msg598634.html
Merged into arm-soc now with Shawn's pull request.
Arnd
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