linux-kernel - [tip: locking/core] futex/requeue: Remove unnecessary =?utf-8?q??= ‘NULL’ initialization from futex_proxy_trylock

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Message-ID: <169643577653.3135.1339527957884113798.tip-bot2@tip-bot2>
Date:   Wed, 04 Oct 2023 16:09:36 -0000
From:   "tip-bot2 for Li zeming" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Li zeming <zeming@...china.com>, Ingo Molnar <mingo@...nel.org>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: locking/core] futex/requeue: Remove unnecessary =?utf-8?q??=
 ‘NULL’ initialization from futex_proxy_trylock_atomic()

The following commit has been merged into the locking/core branch of tip:

Commit-ID:     01a99a750a4f414c221781de2e5570e0ceae04b5
Gitweb:        https://git.kernel.org/tip/01a99a750a4f414c221781de2e5570e0ceae04b5
Author:        Li zeming <zeming@...china.com>
AuthorDate:    Wed, 26 Jul 2023 03:50:47 +08:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Wed, 04 Oct 2023 18:04:47 +02:00

futex/requeue: Remove unnecessary ‘NULL’ initialization from futex_proxy_trylock_atomic()

'top_waiter' is assigned unconditionally before first use,
so it does not need an initialization.

[ mingo: Created legible changelog. ]

Signed-off-by: Li zeming <zeming@...china.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Link: https://lore.kernel.org/r/20230725195047.3106-1-zeming@nfschina.com
---
 kernel/futex/requeue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/futex/requeue.c b/kernel/futex/requeue.c
index a0a7995..16a3645 100644
--- a/kernel/futex/requeue.c
+++ b/kernel/futex/requeue.c
@@ -269,7 +269,7 @@ futex_proxy_trylock_atomic(u32 __user *pifutex, struct futex_hash_bucket *hb1,
 			   union futex_key *key2, struct futex_pi_state **ps,
 			   struct task_struct **exiting, int set_waiters)
 {
-	struct futex_q *top_waiter = NULL;
+	struct futex_q *top_waiter;
 	u32 curval;
 	int ret;