util/romcc: Add extra null pointer check

It is possible that 'lnode->val' is set to 0 on a previous iteration of
the loop, so check that it is non-null here before dereferencing it.

Change-Id: I9827dd5623eaf11240df605a8b50ff9e27a5fce0
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 1129149
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32917
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions