On Tue, Apr 05, 2022 at 08:10:38PM +0800, Zheyu Ma wrote: > When the driver fails during probing, the driver should disable the > regulator, not just handle it in wm8731_hw_init(). > > The following log reveals it: > > [ 17.812483] WARNING: CPU: 1 PID: 364 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0 > [ 17.815958] RIP: 0010:_regulator_put+0x3ec/0x4e0 > [ 17.824467] Call Trace: > [ 17.824774] <TASK> > [ 17.825040] regulator_bulk_free+0x82/0xe0 > [ 17.825514] devres_release_group+0x319/0x3d0 > [ 17.825882] i2c_device_probe+0x766/0x940 > [ 17.829198] i2c_register_driver+0xb5/0x130 > > Signed-off-by: Zheyu Ma <zheyuma97@xxxxxxxxx> > --- Mark just merged a big chain overhauling a lot of this driver, at the very least this patch is going to require a rebase on top of that lot. Thanks, Charles