diff options
| -rw-r--r-- | kernel/rtmutex.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c index c70436b..5c70d79 100644 --- a/kernel/rtmutex.c +++ b/kernel/rtmutex.c @@ -1091,12 +1091,12 @@ int atomic_dec_and_spin_lock(atomic_t *atomic, spinlock_t *lock) /* Subtract 1 from counter unless that drops it to 0 (ie. it was 1) */ if (atomic_add_unless(atomic, -1, 1)) return 0; + migrate_disable(); rt_spin_lock(lock); - if (atomic_dec_and_test(atomic)){ - migrate_disable(); + if (atomic_dec_and_test(atomic)) return 1; - } rt_spin_unlock(lock); + migrate_enable(); return 0; } EXPORT_SYMBOL(atomic_dec_and_spin_lock); |