Clang Static Analyzer version 8.0.0 detects that the result of
log2_ceil(bios_size) and log2_ceil(window_size) is undefined if the
value of bios_size and window_size are negative. Add negative value
Check for bios_size and window_size after MIN operation.
Change-Id: I28577b6e0ba0ab45bb7804c17ba1f26c4b078b15
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34182
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>