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SubjectRe: [PATCH] staging: comedi: serial2002: quiet NULL pointer sparse noise
On Fri, Jun 08, 2012 at 07:46:19AM +0100, Ian Abbott wrote:
> On 08/06/12 01:14, H Hartley Sweeten wrote:
> >Quiet a number of sparse warnings in this file:
> >
> >warning: Using plain integer as NULL pointer
>
> I wonder why sparse warns about that for a literal, unadorned 0? I
> suppose NULL is more explicit, but a plain 0 means the same as NULL
> in a pointer context (unlike a zero from some random expression).
>

http://lwn.net/Articles/93574/

regards,
dan carpenter



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