Re: [Linux-ia64] Re: memcpy failure

Mario Smarduch
2002-11-14T16:09:34Z

Matthew Wilcox wrote:

> On Thu, Nov 14, 2002 at 10:01:44AM +010-, Christian Cotte-Barrot wrote:
> > But memcpy from memcpy.S is returning a pointer to dest area.
> > That would lead to quasi non-portable code when the return from memcopy
> > is correctly checked depending on which memcopy function is addressed.
> > But BTW, is it meaningful to take into account a return code
> > that is always the same and which value is known in advance ?
> > Does memcpy suppose to failed in some cases ?
>
> no, memcpy cannot fail (you get a SIGSEGV in userspace or an MCA in
> kernel space). checking the return value is meaningless.
>
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>

Aren't all these routines suppose to return -EFAULT if a fault occurs?

- Mario.