ext4 crypto: release crypto resource on module exit

Crypto resource should be released when ext4 module exits, otherwise
it will cause memory leak.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 56bfc2f..31e85be 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5645,6 +5645,7 @@ out7:
 
 static void __exit ext4_exit_fs(void)
 {
+       ext4_exit_crypto();
        ext4_destroy_lazyinit_thread();
        unregister_as_ext2();
        unregister_as_ext3();