linux-kernel - [PATCH v2 19/29] cifs: avoid pointless cred reference count bump

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Message-Id: <20241125-work-cred-v2-19-68b9d38bb5b2@kernel.org>
Date: Mon, 25 Nov 2024 15:10:15 +0100
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Amir Goldstein <amir73il@...il.com>, Miklos Szeredi <miklos@...redi.hu>, 
 Al Viro <viro@...iv.linux.org.uk>, Jens Axboe <axboe@...nel.dk>, 
 linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
 Christian Brauner <brauner@...nel.org>
Subject: [PATCH v2 19/29] cifs: avoid pointless cred reference count bump

During module init spnego_cred will be allocated with its own reference
which is only destroyed during module exit.

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 fs/smb/client/cifs_spnego.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/smb/client/cifs_spnego.c b/fs/smb/client/cifs_spnego.c
index 3f3a662c76fa43c1e843310cc814427bcfd0e821..af7849e5974ff36619405a12e667e7543bb3926f 100644
--- a/fs/smb/client/cifs_spnego.c
+++ b/fs/smb/client/cifs_spnego.c
@@ -157,9 +157,9 @@ cifs_get_spnego_key(struct cifs_ses *sesInfo,
 	sprintf(dp, ";pid=0x%x", current->pid);
 
 	cifs_dbg(FYI, "key description = %s\n", description);
-	saved_cred = override_creds(get_new_cred(spnego_cred));
+	saved_cred = override_creds(spnego_cred);
 	spnego_key = request_key(&cifs_spnego_key_type, description, "");
-	put_cred(revert_creds(saved_cred));
+	revert_creds(saved_cred);
 
 #ifdef CONFIG_CIFS_DEBUG2
 	if (cifsFYI && !IS_ERR(spnego_key)) {

-- 
2.45.2