1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/smp.c b/kernel/smp.c
index 8e451f3ff51b..b320622543e9 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -109,7 +109,7 @@ static void csd_lock_wait(struct call_single_data *data)
 static void csd_lock(struct call_single_data *data)
 {
         csd_lock_wait(data);
-        data->flags = CSD_FLAG_LOCK;
+        data->flags |= CSD_FLAG_LOCK;
 
         /*
          * prevent CPU from reordering the above assignment