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-rw-r--r--drivers/of/unittest.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index e16ea5717b7f..bbff09dee1cf 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -757,6 +757,11 @@ static void __init of_unittest_match_node(void)
}
}
+static struct resource test_bus_res = {
+ .start = 0xfffffff8,
+ .end = 0xfffffff9,
+ .flags = IORESOURCE_MEM,
+};
static const struct platform_device_info test_bus_info = {
.name = "unittest-bus",
};
@@ -800,6 +805,15 @@ static void __init of_unittest_platform_populate(void)
return;
test_bus->dev.of_node = np;
+ /*
+ * Add a dummy resource to the test bus node after it is
+ * registered to catch problems with un-inserted resources. The
+ * DT code doesn't insert the resources, and it has caused the
+ * kernel to oops in the past. This makes sure the same bug
+ * doesn't crop up again.
+ */
+ platform_device_add_resources(test_bus, &test_bus_res, 1);
+
of_platform_populate(np, match, NULL, &test_bus->dev);
for_each_child_of_node(np, child) {
for_each_child_of_node(child, grandchild)