[coreboot-gerrit] Change in coreboot[master]: commonlib/region: Add null parameters handling

[Name of user not set (Code Review)]

Name of user not set #1003143 has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/48627 )

Change subject: commonlib/region: Add null parameters handling
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commonlib/region: Add null parameters handling

Prevent NULL-pointer dereference of child or parent root_device parameter.

Signed-off-by: Jakub Czapiga 
Change-Id: I6b9c2b4a3dc2f4f31a40fd045d1fa2d2d1df3eca
---
M src/commonlib/region.c
1 file changed, 3 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/48627/1

diff --git a/src/commonlib/region.c b/src/commonlib/region.c
index a10702a..efb7b1f 100644
--- a/src/commonlib/region.c
+++ b/src/commonlib/region.c
@@ -141,6 +141,9 @@
    	.size = size,
    };

+	if (child == NULL || parent == NULL)
+		return -1;
+
    if (!normalize_and_ok(&parent->region, &req))
    	return -1;