On Wed, 13 Oct 2010, Oliver Neukum wrote:
> Hi,
>
> drivers need to return errors to user space.
> A common source for them are urb->status and the
> return value of usb_submit_urb(). They cannot be returned as
> is to user space, as for example -EPIPE has a very
> different meaning in user space. I'd like to add this small
> helper for conversion.
> What do you think?
>
> Regards
> Oliver
>
>
> +/* translate USB error codes to codes user space understands */
> +static inline int usb_translate_errors(int error_code)
> +{
> + switch (error_code) {
> + case 0:
> + case -ENOMEM:
> + case -ENODEV:
> + return error_code;
> + default:
> + return -EIO;
> + }
> +}
Should this be a non-inline function?
Alan Stern
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