[S] Change in coreboot[main]: cbmem.h: Change signature of cbmem_get_region

[Arthur Heymans (Code Review)]

Attention is currently required from: Arthur Heymans, Christian Walter, Jakub Czapiga, Johnny Lin, Jonathan Zhang, Jérémy Compostella, Lean Sheng Tan, Patrick Rudolph, Tim Chu.

Hello Christian Walter, Jakub Czapiga, Johnny Lin, Jonathan Zhang, Jérémy Compostella, Lean Sheng Tan, Patrick Rudolph, Shuo Liu, Tim Chu,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/84039?usp=email

to look at the new patch set (#5).

Change subject: cbmem.h: Change signature of cbmem_get_region
......................................................................

cbmem.h: Change signature of cbmem_get_region

The underlying IMD function already returns an integer which indicates
success or failure.

This removes the need to have initialized variables that need to be
checked for NULL later.

Dying is appropriate if cbmem is not found as it is essential to the
bootflow.

Change-Id: Ib3e09a75380faf9f533601368993261f042422ef
Signed-off-by: Arthur Heymans 
---
M src/arch/x86/postcar_loader.c
M src/include/cbmem.h
M src/lib/fit_payload.c
M src/lib/imd_cbmem.c
M src/security/memory/memory_clear.c
M src/soc/intel/xeon_sp/memmap.c
M tests/lib/Makefile.mk
7 files changed, 23 insertions(+), 15 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/39/84039/5