Messages in this thread | | | Date | Mon, 14 Aug 2017 13:35:12 +0800 | From | Shawn Guo <> | Subject | Re: [PATCH] soc: imx: gpcv2: fix regulator deferred probe |
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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
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