linux-kernel - [PATCH 25/26] trace: avoid pointless cred reference count bump

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Message-ID: <20241124-work-cred-v1-25-f352241c3970@kernel.org>
Date: Sun, 24 Nov 2024 14:44:11 +0100
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Christian Brauner <brauner@...nel.org>,
	Amir Goldstein <amir73il@...il.com>,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 25/26] trace: avoid pointless cred reference count bump

No need for the extra reference count bump.

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 kernel/trace/trace_events_user.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c
index c54ae15f425c2c1dad3f8c776027beca2f00a0a5..1ec83a4f19ac038a8580391c291653ab822ce664 100644
--- a/kernel/trace/trace_events_user.c
+++ b/kernel/trace/trace_events_user.c
@@ -1469,7 +1469,7 @@ static int user_event_set_call_visible(struct user_event *user, bool visible)
 	 */
 	cred->fsuid = GLOBAL_ROOT_UID;
 
-	old_cred = override_creds(get_new_cred(cred));
+	old_cred = override_creds(cred);
 
 	if (visible)
 		ret = trace_add_event_call(&user->call);
@@ -1477,7 +1477,6 @@ static int user_event_set_call_visible(struct user_event *user, bool visible)
 		ret = trace_remove_event_call(&user->call);
 
 	put_cred(revert_creds(old_cred));
-	put_cred(cred);
 
 	return ret;
 }

-- 
2.45.2