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SubjectRe: [PATCH 2/2] mtd: core: Don't fail mtd_device_parse_register() if OTP is unsupported
On Wed, Mar 13, 2024 at 10:24:13AM +0100, Michael Walle wrote:
> On Mon Mar 11, 2024 at 5:20 PM CET, Aapo Vienamo wrote:
> > On Mon, Mar 11, 2024 at 03:38:17PM +0100, Michael Walle wrote:
> > > Also, you'll print an error message for EOPNOTSUPP, although that is
> > > not really an error. Is that intended?
> >
> > Well, when we hit this, the functionality of the SPI memory itself is
> > degraded in the sense that the OTP functionality is not available. What
> > would you suggest?
>
> But it's not really an error, I mean, we are ignoring that one on
> purpose now :) I'd just guard it with "if (ret != -EOPNOTSUPP)".

To clarify, are you suggesting a modification like this to the code at
the end of mtd_otp_nvmem_add()?

err:
nvmem_unregister(...);
if (ret != EOPNOTSUPP)
return dev_err_probe(...);
return 0;

Best,
Aapo

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