1 files changed, 1 insertions, 0 deletions

diff --git a/ipc/sem.c b/ipc/sem.c
index a5cff0e109ab..87bd38f38dc3 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -515,6 +515,7 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
         sma->sem_nsems = nsems;
         sma->sem_ctime = ktime_get_real_seconds();
 
+        /* ipc_addid() locks sma upon success. */
         retval = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
         if (retval < 0) {
                 call_rcu(&sma->sem_perm.rcu, sem_rcu_free);