standard error codes

[Greg KH]

On Tue, Mar 14, 2017 at 03:33:38PM +1100, Tobin C. Harding wrote:
> Driver code in staging/drivers/ks7010 uses the error code -E2BIG as
> the error returned if a string argument is larger than destination
> buffer. Would this not be better suited to the error code -EOVERFLOW?
> Does it matter?
> 
> For reference;
> 
> #define E2BIG        7  /* Argument list too long */
> #define EOVERFLOW   75  /* Value too large for defined data type */

It all depends on what happens to this error code.  Is it sent to
userspace?  If so, what type of itnerface is it?

thanks,

greg k-h