rt: Remove rwlocks BUG_ON and useless read_depth check

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 4 deletions

diff --git a/kernel/rt.c b/kernel/rt.c
index 59ca169229ac..7da32994e88f 100644
--- a/kernel/rt.c
+++ b/kernel/rt.c
@@ -206,7 +206,7 @@ int __lockfunc rt_read_trylock(rwlock_t *rwlock)
         /*
          * recursive read locks succeed when current owns the lock
          */
-        if (rt_mutex_real_owner(lock) != current || !rwlock->read_depth)
+        if (rt_mutex_real_owner(lock) != current)
                 ret = rt_mutex_trylock(lock);
 
         if (ret) {
@@ -234,7 +234,7 @@ void __lockfunc rt_read_lock(rwlock_t *rwlock)
         /*
          * recursive read locks succeed when current owns the lock
          */
-        if (rt_mutex_real_owner(lock) != current || !rwlock->read_depth)
+        if (rt_mutex_real_owner(lock) != current)
                 __rt_spin_lock(lock);
         rwlock->read_depth++;
 }
@@ -253,8 +253,6 @@ void __lockfunc rt_read_unlock(rwlock_t *rwlock)
 {
         rwlock_release(&rwlock->dep_map, 1, _RET_IP_);
 
-        BUG_ON(rwlock->read_depth <= 0);
-
         /* Release the lock only when read_depth is down to 0 */
         if (--rwlock->read_depth == 0)
                 __rt_spin_unlock(&rwlock->lock);