[PATCH 1/6] usb: Return -ENOSYS when system call is not available

[Simon Glass]

Hi Marek,

On Sun, 21 Mar 2021 at 17:09, Marek Vasut <marex at denx.de> wrote:
>
> On 3/21/21 4:18 AM, Simon Glass wrote:
> > Update usb_gadget_release() to use -ENOSYS, which is the correct error
> > code for U-Boot.
>
> It would be good if you could explain _why_ this change is required. Why
> is ENOSYS the correct return value ? It is not clear from the patch
> description, sorry.

That is the value used throughout driver model, so it is a convention.
As per the cover letter and one on the patches, people are not sure
which one to use, because -ENOTSUPP has crept in in a few places.

Regards,
Simon