1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 518d86471b76..298781d4cfb4 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -262,8 +262,10 @@ void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu)
                 return;
 
         timer = &pit->pit_state.timer;
+        mutex_lock(&pit->pit_state.lock);
         if (hrtimer_cancel(timer))
                 hrtimer_start_expires(timer, HRTIMER_MODE_ABS);
+        mutex_unlock(&pit->pit_state.lock);
 }
 
 static void destroy_pit_timer(struct kvm_pit *pit)