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 98b9016cab6c..a4695ada3275 100644 --- a/ipc/compat.c +++ b/ipc/compat.c @@ -753,14 +753,8 @@ COMPAT_SYSCALL_DEFINE4(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 d58747293772..90d29f59cac6 100644 --- a/ipc/compat_mq.c +++ b/ipc/compat_mq.c @@ -64,20 +64,6 @@ COMPAT_SYSCALL_DEFINE4(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; -} - COMPAT_SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr, compat_size_t, msg_len, unsigned int, msg_prio, @@ -85,7 +71,7 @@ COMPAT_SYSCALL_DEFINE5(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 @@ COMPAT_SYSCALL_DEFINE5(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, |