vboot: Add catchall recovery reason for unspecified phase 4 errors

The code for "phase 4" of firmware verification currently only sets a
recovery reason when there's an actual hash mismatch detected in
vb2api_check_hash_get_digest(). This is the most likely way how this
section of code can fail but not the only one. If any other unexpected
issue occurs, we should still set a recovery reason rather than just
reboot and risk an infinite boot loop.

This patch adds a catchall recovery reason for any error code that falls
out of this block of code. If a more specific recovery reason had
already been set beforehand, we'll continue to use that -- if not, we'll
set VB2_RECOVERY_FW_GET_FW_BODY.

Change-Id: If00f8f8a5d17aa113e0325aad58d367f244aca49
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78821
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions