diff options
Diffstat (limited to 'kernel/posix-timers.c')
| -rw-r--r-- | kernel/posix-timers.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index d71ed09fe1dd..d11f579d189a 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -981,9 +981,20 @@ sys_clock_getres(const clockid_t which_clock, struct timespec __user *tp) static int common_nsleep(const clockid_t which_clock, int flags, struct timespec *tsave, struct timespec __user *rmtp) { - return hrtimer_nanosleep(tsave, rmtp, flags & TIMER_ABSTIME ? - HRTIMER_MODE_ABS : HRTIMER_MODE_REL, - which_clock); + struct timespec rmt; + int ret; + + ret = hrtimer_nanosleep(tsave, rmtp ? &rmt : NULL, + flags & TIMER_ABSTIME ? + HRTIMER_MODE_ABS : HRTIMER_MODE_REL, + which_clock); + + if (ret && rmtp) { + if (copy_to_user(rmtp, &rmt, sizeof(*rmtp))) + return -EFAULT; + } + + return ret; } asmlinkage long |