[coreboot-gerrit] Change in coreboot[master]: superio/common: Fix NULL pointer dereferences

[John Zhao (Code Review)]

John Zhao has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/45627 )

Change subject: superio/common: Fix NULL pointer dereferences
......................................................................

superio/common: Fix NULL pointer dereferences

Coverity detects the dev->link_list NULL pointer dereferences while
calling report_resource_stored. Add sanity check for dev->link_list to
prevent NULL pointer dereference.

Found-by: Coverity CID 1419488
TEST=None

Signed-off-by: John Zhao 
Change-Id: I953a6524fff509a7833896392b25a3245c8cd705
---
M src/superio/common/generic.c
1 file changed, 2 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/27/45627/1

diff --git a/src/superio/common/generic.c b/src/superio/common/generic.c
index 83f2fea..50db688 100644
--- a/src/superio/common/generic.c
+++ b/src/superio/common/generic.c
@@ -20,7 +20,8 @@
    		continue;

res->flags |= IORESOURCE_STORED;
-		report_resource_stored(dev, res, "");
+		if (dev->link_list)
+			report_resource_stored(dev, res, "");
    }
 }