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    Subject[PATCH 6/7] kernel/mutex: mutex_is_locked can be boolean
    Date
    This patch makes mutex_is_locked return bool due to this
    particular function only using either one or zero as its return
    value.

    No functional change.

    Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
    ---
    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 153274f..f25c134 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
    --
    1.8.3.1


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