From 493b3fc40970583360b4adbc0a9a0e67a07b6fa2 Mon Sep 17 00:00:00 2001
From: David Karoly <karolyd577@gmail.com>
Date: Mon, 8 Nov 2021 16:50:54 +0100
Subject: [PATCH] bus_managers/fdt: check for NULL

Change-Id: Ib33b2591c2966a266e0813e042d388dbe88ef939
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4700
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
---
 src/add-ons/kernel/bus_managers/fdt/fdt_module.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/add-ons/kernel/bus_managers/fdt/fdt_module.cpp b/src/add-ons/kernel/bus_managers/fdt/fdt_module.cpp
index 7f6e72dbb1..c143aae848 100644
--- a/src/add-ons/kernel/bus_managers/fdt/fdt_module.cpp
+++ b/src/add-ons/kernel/bus_managers/fdt/fdt_module.cpp
@@ -188,6 +188,11 @@ fdt_bus_init(device_node* node, void** cookie)
 {
 	TRACE("fdt_bus_init\n");
 
+	if (gFDT == NULL) {
+		TRACE("FDT is NULL!\n");
+		return B_DEVICE_NOT_FOUND;
+	}
+
 	ObjectDeleter<fdt_bus> bus(new(std::nothrow) fdt_bus());
 	if (!bus.IsSet())
 		return B_NO_MEMORY;