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Diffstat (limited to 'ipc/sem.c')
-rw-r--r--ipc/sem.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index 00ef2f743a62..18e50f464f76 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1223,7 +1223,6 @@ static int semctl_stat(struct ipc_namespace *ns, int semid,
{
struct sem_array *sma;
time64_t semotime;
- int id = 0;
int err;
memset(semid64, 0, sizeof(*semid64));
@@ -1235,7 +1234,6 @@ static int semctl_stat(struct ipc_namespace *ns, int semid,
err = PTR_ERR(sma);
goto out_unlock;
}
- id = sma->sem_perm.id;
} else { /* IPC_STAT */
sma = sem_obtain_object_check(ns, semid);
if (IS_ERR(sma)) {
@@ -1275,10 +1273,20 @@ static int semctl_stat(struct ipc_namespace *ns, int semid,
#endif
semid64->sem_nsems = sma->sem_nsems;
+ if (cmd == IPC_STAT) {
+ /*
+ * As defined in SUS:
+ * Return 0 on success
+ */
+ err = 0;
+ } else {
+ /*
+ * SEM_STAT and SEM_STAT_ANY (both Linux specific)
+ * Return the full id, including the sequence number
+ */
+ err = sma->sem_perm.id;
+ }
ipc_unlock_object(&sma->sem_perm);
- rcu_read_unlock();
- return id;
-
out_unlock:
rcu_read_unlock();
return err;