main: add module_exit()

This is needed since we have module_init() and otherwise
the kernel cannot unload the module again.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Tested-by: Luciano Coelho <luciano.coelho@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/backport/compat/main.c b/backport/compat/main.c
index 2540e757..d4f3340d 100644
--- a/backport/compat/main.c
+++ b/backport/compat/main.c
@@ -72,3 +72,8 @@ static int __init backport_init(void)
         return 0;
 }
 subsys_initcall(backport_init);
+
+static void __exit backport_exit(void)
+{
+}
+module_exit(backport_exit);