On Sun, Apr 10, 2022 at 11:53 PM Jonathan Cameron <jic23@xxxxxxxxxx> wrote: > > On Sat, 9 Apr 2022 11:48:49 +0800 > Zheyu Ma <zheyuma97@xxxxxxxxx> wrote: > > > When the driver fails to enable the regulator 'vid', we will get the > > following splat: > > > > [ 79.955610] WARNING: CPU: 5 PID: 441 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0 > > [ 79.959641] RIP: 0010:_regulator_put+0x3ec/0x4e0 > > [ 79.967570] Call Trace: > > [ 79.967773] <TASK> > > [ 79.967951] regulator_put+0x1f/0x30 > > [ 79.968254] devres_release_group+0x319/0x3d0 > > [ 79.968608] i2c_device_probe+0x766/0x940 > > > > Fix this by disabling the 'vdd' regulator when failing to enable 'vid' > > regulator. > > > > Signed-off-by: Zheyu Ma <zheyuma97@xxxxxxxxx> > This driver doesn't really have a maintainer any more, though Linus W actually > last touched this bit of code. So +CC. > > However, it's pretty obviously correct so applied to the fixes-togreg branch of iio.git. > > For future reference, please don't send one fix as reply to a fix on a different driver. > Makes a mess of thread handling and tracking in patchwork etc. Sorry for the confusion, I will take care of it next time. > Ideally also please provide a fixes tag. For this one I have applied with out it > because it was a long time back and looks like the bug predates a bunch of refactoring > of this code. Thanks for your reminder, I will add the fixes tag in the next submission. Regards, Zheyu Ma