Re: [PATCH v1] i2c: tegra: Ensure that device is suspended before driver is removed

From: Wolfram Sang
Date: Fri Oct 29 2021 - 15:52:14 EST


On Wed, Oct 20, 2021 at 02:29:19AM +0300, Dmitry Osipenko wrote:
> Tegra I2C device isn't guaranteed to be suspended after removal of
> the driver since driver uses pm_runtime_put() that is asynchronous and
> pm_runtime_disable() cancels pending power-change requests. This means
> that potentially refcount of the clocks may become unbalanced after
> removal of the driver. This a very minor problem which unlikely to
> happen in practice and won't cause any visible problems, nevertheless
> let's replace pm_runtime_disable() with pm_runtime_force_suspend() and
> use pm_runtime_put_sync() which disables RPM of the device and puts it
> into suspend before driver is removed.
>
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>

Applied to for-next, thanks!

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