[PATCH 5/6] smb/server: call ksmbd_proc_cleanup() on module init failure

[ZhangGuoDong <zhang.guodong@linux.dev>]

From: ZhangGuoDong <zhangguodong@kylinos.cn>

When a later initializer fails, the unwind chain releases resources
created after procfs and then jumps directly to class_unregister().
Returning an error from module_init() leaves the proc tree and its
per-CPU counters allocated.

Fixes: b38f99c1217a ("ksmbd: add procfs interface for runtime monitoring and statistics")
Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
---
 fs/smb/server/server.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/smb/server/server.c b/fs/smb/server/server.c
index 19630ac53235..0ccd123ba418 100644
--- a/fs/smb/server/server.c
+++ b/fs/smb/server/server.c
@@ -630,11 +630,11 @@ static int __init ksmbd_server_init(void)
 
 	ret = server_conf_init();
 	if (ret)
-		goto err_unregister;
+		goto err_proc_cleanup;
 
 	ret = ksmbd_work_pool_init();
 	if (ret)
-		goto err_unregister;
+		goto err_proc_cleanup;
 
 	ret = ksmbd_init_file_cache();
 	if (ret)
@@ -680,6 +680,8 @@ static int __init ksmbd_server_init(void)
 	ksmbd_exit_file_cache();
 err_destroy_work_pools:
 	ksmbd_work_pool_destroy();
+err_proc_cleanup:
+	ksmbd_proc_cleanup();
 err_unregister:
 	class_unregister(&ksmbd_control_class);
 
-- 
2.54.0