Re: [Xen-devel] [PATCH] Pointer should be checked before use

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Yang, Xiaowei writes ("[Xen-devel] [PATCH] Pointer should be checked before 
use"):
> +    if ( domids == NULL || refs == NULL )
> +        return NULL;

Callers should not pass null pointers.  If they do it is better for
the program to explode sooner than later; that makes tracking the
fault much easier.

So this kind of check, turning incoming null pointers into error
returns, is a bad idea.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel