From e581595ea29c737587bcc349420bfdacb9a6b02b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 11 Jul 2019 20:53:12 -0700
Subject: ocfs: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Also, because there is no need to save the file dentry, remove all of
the variables that were being saved, and just recursively delete the
whole directory when shutting down, saving a lot of logic and local
variables.

[gregkh@linuxfoundation.org: v2]
  Link: http://lkml.kernel.org/r/20190613055455.GE19717@kroah.com
Link: http://lkml.kernel.org/r/20190612152912.GA19151@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Jia Guo <guojia12@huawei.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/dlm/dlmdebug.h | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

(limited to 'fs/ocfs2/dlm/dlmdebug.h')

diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h
index 74d019694c7e..7d0c7c9013ce 100644
--- a/fs/ocfs2/dlm/dlmdebug.h
+++ b/fs/ocfs2/dlm/dlmdebug.h
@@ -28,20 +28,19 @@ struct debug_lockres {
 	struct dlm_lock_resource *dl_res;
 };
 
-int dlm_debug_init(struct dlm_ctxt *dlm);
+void dlm_debug_init(struct dlm_ctxt *dlm);
 void dlm_debug_shutdown(struct dlm_ctxt *dlm);
 
 int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm);
 void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm);
 
-int dlm_create_debugfs_root(void);
+void dlm_create_debugfs_root(void);
 void dlm_destroy_debugfs_root(void);
 
 #else
 
-static inline int dlm_debug_init(struct dlm_ctxt *dlm)
+static inline void dlm_debug_init(struct dlm_ctxt *dlm)
 {
-	return 0;
 }
 static inline void dlm_debug_shutdown(struct dlm_ctxt *dlm)
 {
@@ -53,9 +52,8 @@ static inline int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
 static inline void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
 {
 }
-static inline int dlm_create_debugfs_root(void)
+static inline void dlm_create_debugfs_root(void)
 {
-	return 0;
 }
 static inline void dlm_destroy_debugfs_root(void)
 {
-- 
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