[PATCH] lib/test_string.c: allow mode removal

[Matteo Croce <mcroce@linux.microsoft.com>]

From: Matteo Croce <mcroce@microsoft.com>

The test_string can't be removed because it lacks an exit hook.
Since there is no reason for it to be permanent, add an empty one to
allow module removal.

Signed-off-by: Matteo Croce <mcroce@microsoft.com>
---
 lib/test_string.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/test_string.c b/lib/test_string.c
index 7b31f4a505bf..9dfd6f52de92 100644
--- a/lib/test_string.c
+++ b/lib/test_string.c
@@ -179,6 +179,10 @@ static __init int strnchr_selftest(void)
 	return 0;
 }
 
+static __exit void string_selftest_remove(void)
+{
+}
+
 static __init int string_selftest_init(void)
 {
 	int test, subtest;
@@ -216,4 +220,5 @@ static __init int string_selftest_init(void)
 }
 
 module_init(string_selftest_init);
+module_exit(string_selftest_remove);
 MODULE_LICENSE("GPL v2");
-- 
2.31.1