RE: [PATCH v9 1/1] efi: a misc char interface for user to update efi firmware

[Kweh, Hock Leong]

> -----Original Message-----
> From: Borislav Petkov [mailto:bp@xxxxxxxxx]
> Sent: Wednesday, November 04, 2015 4:15 AM
> 
> On Mon, Nov 02, 2015 at 07:17:28AM +0000, Kweh, Hock Leong wrote:
> > This is not a return value to indicate what is going now. It is a flag
> > used in "cap_info->index" which positive value has a meaning of index
> > number. I am using the negative value for the flag which similar to
> > the implementation of pointer & error pointer (ERR_PTR).
> 
> Ok, but that doesn't make any sense: you're assigning UPLOAD_DONE to
> cap_info->index only once in efi_capsule_submit_update() and you're not
> testing it anywhere. Yeah, yeah, you're implicitly testing for it by
> doing the "< 0" check.
> 
> So simply assign -1 to ->index to mean *any* type of error occurred,
> remove the defines and you can always test for "< 0" to mean "did
> something fail".
> 
> You simply don't need two error values...
> 

Ok. Noted.

Thanks & Regards,
Wilson