From e80704272f5c3f80d315144b5eeaf867082c94ad Mon Sep 17 00:00:00 2001 From: Marco Elver Date: Mon, 9 Aug 2021 13:25:09 +0200 Subject: kcsan: test: Defer kcsan_test_init() after kunit initialization When the test is built into the kernel (not a module), kcsan_test_init() and kunit_init() both use late_initcall(), which means kcsan_test_init() might see a NULL debugfs_rootdir as parent dentry, resulting in kcsan_test_init() and kcsan_debugfs_init() both trying to create a debugfs node named "kcsan" in debugfs root. One of them will show an error and be unsuccessful. Defer kcsan_test_init() until we're sure kunit was initialized. Signed-off-by: Marco Elver Signed-off-by: Paul E. McKenney --- kernel/kcsan/kcsan_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/kcsan') diff --git a/kernel/kcsan/kcsan_test.c b/kernel/kcsan/kcsan_test.c index dc55fd5a36fc..df041bdb6088 100644 --- a/kernel/kcsan/kcsan_test.c +++ b/kernel/kcsan/kcsan_test.c @@ -1224,7 +1224,7 @@ static void kcsan_test_exit(void) tracepoint_synchronize_unregister(); } -late_initcall(kcsan_test_init); +late_initcall_sync(kcsan_test_init); module_exit(kcsan_test_exit); MODULE_LICENSE("GPL v2"); -- cgit v1.2.3-58-ga151