> > > > +#ifdef CONFIG_PM_SLEEP
> > > > +static int gp2a_suspend(struct device *dev)
> > > > +{
> > > > + struct i2c_client *client = to_i2c_client(dev);
> > > > + struct gp2a_data *dt = i2c_get_clientdata(client);
> > > > + int error;
> > > > +
> > > > + if (device_may_wakeup(&client->dev)) {
> > > > + enable_irq_wake(client->irq);
> > > > + } else {
> > >
> > > This needs locking WRT open/close. Please acquire dt->device->mutex and
> > > only disable if dt->device->users != 0. Similar shoudl be done for
> > > resume.
> >
> > I see what you mean. I will fix it.
> Is my understanding correct?You are going to disable the device
> only when there are users of the driver and not disable the device
> otherwise.As anyway if there are no users the driver would have been
> already disabled right?
Please, see PATCH v3 for the answer to your question.
-Oskar
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