> > + if (ret) {
> > + dev_err(i2c_dev->dev, "bus not free\n");
> > + ret = -EBUSY;
>
> I'm not sure if "bus not free" deserves an error message. Wolfram?
I tend to agree. But I never enforced it up to now, never found the time
to double check if I could/should enforce it.
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