linux-kernel - [tip: locking/core] kernel/locking: Use a pointer in ww_mutex

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Date:   Wed, 17 Nov 2021 13:59:41 -0000
From:   "tip-bot2 for Sebastian Andrzej Siewior" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: locking/core] kernel/locking: Use a pointer in ww_mutex_trylock().

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

Commit-ID:     2202e15b2b1a946ce760d96748cd7477589701ab
Gitweb:        https://git.kernel.org/tip/2202e15b2b1a946ce760d96748cd7477589701ab
Author:        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
AuthorDate:    Thu, 04 Nov 2021 13:27:06 +01:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Wed, 17 Nov 2021 14:48:49 +01:00

kernel/locking: Use a pointer in ww_mutex_trylock().

mutex_acquire_nest() expects a pointer, pass the pointer.

Fixes: 12235da8c80a1 ("kernel/locking: Add context to ww_mutex_trylock()")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/20211104122706.frk52zxbjorso2kv@linutronix.de
---
 kernel/locking/ww_rt_mutex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/ww_rt_mutex.c b/kernel/locking/ww_rt_mutex.c
index 0e00205..d1473c6 100644
--- a/kernel/locking/ww_rt_mutex.c
+++ b/kernel/locking/ww_rt_mutex.c
@@ -26,7 +26,7 @@ int ww_mutex_trylock(struct ww_mutex *lock, struct ww_acquire_ctx *ww_ctx)
 
 	if (__rt_mutex_trylock(&rtm->rtmutex)) {
 		ww_mutex_set_context_fastpath(lock, ww_ctx);
-		mutex_acquire_nest(&rtm->dep_map, 0, 1, ww_ctx->dep_map, _RET_IP_);
+		mutex_acquire_nest(&rtm->dep_map, 0, 1, &ww_ctx->dep_map, _RET_IP_);
 		return 1;
 	}