linux-kernel - [PATCH] futex: requeue: Remove unnecessary ‘NULL’ values from futex_proxy_trylock

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Message-Id: <20230725195047.3106-1-zeming@nfschina.com>
Date:   Wed, 26 Jul 2023 03:50:47 +0800
From:   Li zeming <zeming@...china.com>
To:     tglx@...utronix.de, mingo@...hat.com, peterz@...radead.org,
        dvhart@...radead.org, dave@...olabs.net, andrealmeid@...lia.com
Cc:     linux-kernel@...r.kernel.org, Li zeming <zeming@...china.com>
Subject: [PATCH] futex: requeue: Remove unnecessary ‘NULL’ values from futex_proxy_trylock_atomic

top_waiter is assigned first, so it does not need to initialize the
assignment.

Signed-off-by: Li zeming <zeming@...china.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 cba8b1a6a4cc..acf0801c285c 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;
 
-- 
2.18.2