tree 9de87ddfaade99f83690e3b3d46769af84c9243d
parent 9e45e32420eda750afea9f6e4a3e6de42ba4152b
author Bill XIE <persmule@hardenedlinux.org> 1680577153 +0800
committer Jakub Czapiga <jacz@semihalf.com> 1680688975 +0000

nb/intel/gm45: Prevent null-deref in get_blc_pwm_freq_value()

IF its first call is get_blc_pwm_freq_value(NULL), null dereference
will occur.

Now when the parameter is NULL, it will return the value of the static
blc_pwm_freq directly, so the original behavior is kept.

Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: I32354aa0fe1a3ca725c2031f973ffad0bda81ad5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74179
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>