diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-07 19:25:37 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-07 19:25:37 -0800 |
commit | b5dd0c658c31b469ccff1b637e5124851e7a4a1c (patch) | |
tree | dc0b31a5aa62bb4e1fa653a4f176c2faae51f9e0 /ipc/sem.c | |
parent | 610cd4eadec4f97acd25d3108b0e50d1362b3319 (diff) | |
parent | fe0436e10c8845aed24cad3a1c719efcd6e583eb (diff) |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
- some of the rest of MM
- various misc things
- dynamic-debug updates
- checkpatch
- some epoll speedups
- autofs
- rapidio
- lib/, lib/lzo/ updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (83 commits)
samples/mic/mpssd/mpssd.h: remove duplicate header
kernel/fork.c: remove duplicated include
include/linux/relay.h: fix percpu annotation in struct rchan
arch/nios2/mm/fault.c: remove duplicate include
unicore32: stop printing the virtual memory layout
MAINTAINERS: fix GTA02 entry and mark as orphan
mm: create the new vm_fault_t type
arm, s390, unicore32: remove oneliner wrappers for memblock_alloc()
arch: simplify several early memory allocations
openrisc: simplify pte_alloc_one_kernel()
sh: prefer memblock APIs returning virtual address
microblaze: prefer memblock API returning virtual address
powerpc: prefer memblock APIs returning virtual address
lib/lzo: separate lzo-rle from lzo
lib/lzo: implement run-length encoding
lib/lzo: fast 8-byte copy on arm64
lib/lzo: 64-bit CTZ on arm64
lib/lzo: tidy-up ifdefs
ipc/sem.c: replace kvmalloc/memset with kvzalloc and use struct_size
ipc: annotate implicit fall through
...
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: |