From fab89b34e70dd52450db86dc115317fcb1d42ebe Mon Sep 17 00:00:00 2001
From: Martin Roth <gaumless@gmail.com>
Date: Mon, 23 Oct 2023 17:47:03 -0600
Subject: device/i2c_bus.c: Check pointer for NULL before using it

Found-by: Coverity Scan #1489753
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I4f3794cf17875cdb35010c79a6537a4c13a18224
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78615
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
---
 src/device/i2c_bus.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/device/i2c_bus.c b/src/device/i2c_bus.c
index 361bb67df8..1d4aa2d2b3 100644
--- a/src/device/i2c_bus.c
+++ b/src/device/i2c_bus.c
@@ -11,6 +11,8 @@
 bool i2c_dev_detect(struct device *dev, unsigned int addr)
 {
 	struct i2c_msg seg = { .flags = 0, .slave = addr, .buf = NULL, .len = 0 };
+	if (!dev)
+		return false;
 	return dev->ops->ops_i2c_bus->transfer(dev, &seg, 1) == 0;
 }
 
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