test_sysctl: Add an unregister sysctl test
Add a test that checks that the unregistered directory is removed from
/proc/sys/debug
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
diff --git a/lib/test_sysctl.c b/lib/test_sysctl.c
index 0cf7c54..5552446 100644
--- a/lib/test_sysctl.c
+++ b/lib/test_sysctl.c
@@ -170,12 +170,42 @@ static int test_sysctl_setup_node_tests(void)
return 0;
}
+/* Used to test that unregister actually removes the directory */
+static struct ctl_table test_table_unregister[] = {
+ {
+ .procname = "unregister_error",
+ .data = &test_data.int_0001,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ },
+ {}
+};
+
+static int test_sysctl_run_unregister_nested(void)
+{
+ struct ctl_table_header *unregister;
+
+ unregister = register_sysctl("debug/test_sysctl/unregister_error",
+ test_table_unregister);
+ if (!unregister)
+ return -ENOMEM;
+
+ unregister_sysctl_table(unregister);
+ return 0;
+}
+
static int __init test_sysctl_init(void)
{
int err;
err = test_sysctl_setup_node_tests();
+ if (err)
+ goto out;
+ err = test_sysctl_run_unregister_nested();
+
+out:
return err;
}
module_init(test_sysctl_init);
