From mboxrd@z Thu Jan  1 00:00:00 1970
From: greg@kroah.com (Greg KH)
Date: Tue, 14 Mar 2017 14:15:43 +0800
Subject: standard error codes
In-Reply-To: <20170314043338.GA5388@eros>
References: <20170314043338.GA5388@eros>
Message-ID: <20170314061543.GA336@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

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