From db076bef2da1f81bf918fc0b24ebed5756fbae5a Mon Sep 17 00:00:00 2001
From: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Date: Tue, 6 Feb 2018 15:41:35 -0800
Subject: [PATCH] kernel/mutex: mutex_is_locked can be boolean
Make mutex_is_locked return bool due to this particular function only
using either one or zero as its return value.
No functional change.
Link: http://lkml.kernel.org/r/1513266622-15860-7-git-send-email-baiyaowei@cmss.chinamobile.com
Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mutex.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 153274f78402b..f25c13423bd47 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -138,9 +138,9 @@ extern void __mutex_init(struct mutex *lock, const char *name,
* mutex_is_locked - is the mutex locked
* @lock: the mutex to be queried
*
- * Returns 1 if the mutex is locked, 0 if unlocked.
+ * Returns true if the mutex is locked, false if unlocked.
*/
-static inline int mutex_is_locked(struct mutex *lock)
+static inline bool mutex_is_locked(struct mutex *lock)
{
/*
* XXX think about spin_is_locked
--
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