1 files changed, 2 insertions, 0 deletions

diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index 58e14fba11b1..55c79086f263 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -86,8 +86,10 @@ void arch_spin_unlock_wait(arch_spinlock_t *lock)
 {
         while (lock->slock) {
                 HMT_low();
+                preempt_disable();
                 if (SHARED_PROCESSOR)
                         __spin_yield(lock);
+                preempt_enable();
         }
         HMT_medium();
 }