From 92fc7cb8ae4d021cf7740e4ad0ced9fa9e07dae0 Mon Sep 17 00:00:00 2001
From: Pravin Shedge <pravin.shedge4linux@gmail.com>
Date: Tue, 6 Feb 2018 15:38:42 -0800
Subject: [PATCH] lib/test_sort.c: add module unload support
test_sort.c performs array-based and linked list sort test. Code allows
to compile either as a loadable modules or builtin into the kernel.
Current code is not allow to unload the test_sort.ko module after
successful completion.
This patch adds support to unload the "test_sort.ko" module by adding
module_exit support.
Previous patch was implemented auto unload support by returning -EAGAIN
from module_init() function on successful case, but this approach is not
ideal.
The auto-unload might seem like a nice optimization, but it encourages
inconsistent behaviour. And behaviour that is different from all other
normal modules.
Link: http://lkml.kernel.org/r/1513967133-6843-1-git-send-email-pravin.shedge4linux@gmail.com
Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com>
Cc: Kostenzer Felix <fkostenzer@live.at>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
lib/test_sort.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/test_sort.c b/lib/test_sort.c
index d389c1cc2f6cf..385c0ed5202ff 100644
--- a/lib/test_sort.c
+++ b/lib/test_sort.c
@@ -39,5 +39,11 @@ static int __init test_sort_init(void)
return err;
}
+static void __exit test_sort_exit(void)
+{
+}
+
module_init(test_sort_init);
+module_exit(test_sort_exit);
+
MODULE_LICENSE("GPL");
--
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