Re: [PATCH v7 17/36] efi: Update efi_mem_type() to return an error rather than 0

From: Matt Fleming
Date: Thu Jun 22 2017 - 06:03:33 EST


On Fri, 16 Jun, at 01:53:06PM, Tom Lendacky wrote:
> The efi_mem_type() function currently returns a 0, which maps to
> EFI_RESERVED_TYPE, if the function is unable to find a memmap entry for
> the supplied physical address. Returning EFI_RESERVED_TYPE implies that
> a memmap entry exists, when it doesn't. Instead of returning 0, change
> the function to return a negative error value when no memmap entry is
> found.
>
> Reviewed-by: Borislav Petkov <bp@xxxxxxx>
> Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
> ---
> arch/ia64/kernel/efi.c | 4 ++--
> arch/x86/platform/efi/efi.c | 6 +++---
> include/linux/efi.h | 2 +-
> 3 files changed, 6 insertions(+), 6 deletions(-)

Reviewed-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>