diff options
Diffstat (limited to 'src/ipc/semctl.c')
| -rw-r--r-- | src/ipc/semctl.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/ipc/semctl.c b/src/ipc/semctl.c index 3d79f503..673a9a8c 100644 --- a/src/ipc/semctl.c +++ b/src/ipc/semctl.c @@ -11,11 +11,15 @@ union semun { int semctl(int id, int num, int cmd, ...) { - union semun arg; + union semun arg = {0}; va_list ap; - va_start(ap, cmd); - arg = va_arg(ap, union semun); - va_end(ap); + switch (cmd) { + case SETVAL: case GETALL: case SETALL: case IPC_STAT: case IPC_SET: + case IPC_INFO: case SEM_INFO: case SEM_STAT: + va_start(ap, cmd); + arg = va_arg(ap, union semun); + va_end(ap); + } #ifdef SYS_semctl return syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf); #else |