Change in coreboot[master]: src/mainboard: Fix issues found by klockwork

[John Zhao (Code Review)]

John Zhao has uploaded this change for review. ( https://review.coreboot.org/28235

Change subject: src/mainboard: Fix issues found by klockwork
......................................................................

src/mainboard: Fix issues found by klockwork

src/mainboard/google/octopus/mainboard.c
  Function wifi_device_update: Pointer dev returned from
  call dev_find_slot may be NULL and will be dereferenced.

BRANCH=None
TEST=Built & booted Yorp board.

Change-Id: I160adbe3b0a5a2b0f11fd1567513860664d4bee3
Signed-off-by: John Zhao 
---
M src/mainboard/google/octopus/mainboard.c
1 file changed, 2 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/28235/1

diff --git a/src/mainboard/google/octopus/mainboard.c b/src/mainboard/google/octopus/mainboard.c
index 61d254e..6effa7c 100644
--- a/src/mainboard/google/octopus/mainboard.c
+++ b/src/mainboard/google/octopus/mainboard.c
@@ -169,7 +169,8 @@
    	devfn = PCH_DEVFN_PCIE1;

dev = dev_find_slot(0, devfn);
-	dev->enabled = 0;
+	if (dev)
+		dev->enabled = 0;
 }

void mainboard_devtree_update(struct device *dev)