diff options
Diffstat (limited to 'ipc/sem.c')
| -rw-r--r-- | ipc/sem.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index 80909464acff..7da4504bcc7c 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -488,18 +488,14 @@ static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s) static struct sem_array *sem_alloc(size_t nsems) { struct sem_array *sma; - size_t size; if (nsems > (INT_MAX - sizeof(*sma)) / sizeof(sma->sems[0])) return NULL; - size = sizeof(*sma) + nsems * sizeof(sma->sems[0]); - sma = kvmalloc(size, GFP_KERNEL); + sma = kvzalloc(struct_size(sma, sems, nsems), GFP_KERNEL); if (unlikely(!sma)) return NULL; - memset(sma, 0, size); - return sma; } @@ -1680,6 +1676,7 @@ static long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg, int v case IPC_SET: if (copy_semid_from_user(&semid64, p, version)) return -EFAULT; + /* fall through */ case IPC_RMID: return semctl_down(ns, semid, cmd, &semid64); default: |