diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/compat.c | 12 | ||||
| -rw-r--r-- | ipc/compat_mq.c | 19 |
2 files changed, 6 insertions, 25 deletions
diff --git a/ipc/compat.c b/ipc/compat.c index f486b0096a6..1048522479e 100644 --- a/ipc/compat.c +++ b/ipc/compat.c @@ -752,14 +752,8 @@ long compat_sys_shmctl(int first, int second, void __user *uptr) long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, unsigned nsops, const struct compat_timespec __user *timeout) { - struct timespec __user *ts64 = NULL; - if (timeout) { - struct timespec ts; - ts64 = compat_alloc_user_space(sizeof(*ts64)); - if (get_compat_timespec(&ts, timeout)) - return -EFAULT; - if (copy_to_user(ts64, &ts, sizeof(ts))) - return -EFAULT; - } + struct timespec __user *ts64; + if (compat_convert_timespec(&ts64, timeout)) + return -EFAULT; return sys_semtimedop(semid, tsems, nsops, ts64); } diff --git a/ipc/compat_mq.c b/ipc/compat_mq.c index 63d7c6de335..a9cf16378d7 100644 --- a/ipc/compat_mq.c +++ b/ipc/compat_mq.c @@ -64,20 +64,6 @@ asmlinkage long compat_sys_mq_open(const char __user *u_name, return sys_mq_open(u_name, oflag, mode, p); } -static int compat_prepare_timeout(struct timespec __user **p, - const struct compat_timespec __user *u) -{ - struct timespec ts; - if (!u) { - *p = NULL; - return 0; - } - *p = compat_alloc_user_space(sizeof(ts)); - if (get_compat_timespec(&ts, u) || copy_to_user(*p, &ts, sizeof(ts))) - return -EFAULT; - return 0; -} - asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr, size_t msg_len, unsigned int msg_prio, @@ -85,7 +71,7 @@ asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, { struct timespec __user *u_ts; - if (compat_prepare_timeout(&u_ts, u_abs_timeout)) + if (compat_convert_timespec(&u_ts, u_abs_timeout)) return -EFAULT; return sys_mq_timedsend(mqdes, u_msg_ptr, msg_len, @@ -98,7 +84,8 @@ asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes, const struct compat_timespec __user *u_abs_timeout) { struct timespec __user *u_ts; - if (compat_prepare_timeout(&u_ts, u_abs_timeout)) + + if (compat_convert_timespec(&u_ts, u_abs_timeout)) return -EFAULT; return sys_mq_timedreceive(mqdes, u_msg_ptr, msg_len, |