Re: [PATCH V4 2/2] scsi: ufs: Allow an error return value from ->device_reset()

[Bean Huo]

On Tue, 2020-11-03 at 16:14 +0200, Adrian Hunter wrote:
> It is simpler for drivers to provide a ->device_reset() callback
> irrespective of whether the GPIO, or firmware interface necessary to
> do the
> reset, is discovered during probe.
> 
> Change ->device_reset() to return an error code.  Drivers that
> provide
> the callback, but do not do the reset operation should return
> -EOPNOTSUPP.
> 
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Reviewed-by: Bean huo <beanhuo@xxxxxxxxxx>