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| author | Arnd Bergmann <arnd@arndb.de> | 2017-10-13 21:29:38 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-10-17 18:22:27 +0300 |
| commit | fe460423438b62eb7440d994ab19a9f444e6280d (patch) | |
| tree | db277a9bc54278ca0b5a55860dd123b10f1cc972 /kernel/time/posix-stubs.c | |
| parent | 6ac35264513e43634f127a92057f04a4b3c5cdbb (diff) | |
| download | linux-fe460423438b62eb7440d994ab19a9f444e6280d.tar.xz | |
posix-stubs: Use get_timespec64() and put_timespec64()
This is a follow-up to commit 5c4994102fb5 ("posix-timers: Use
get_timespec64() and put_timespec64()"), which left two system call using
copy_from_user()/copy_to_user().
Change them as well for consistency.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: y2038@lists.linaro.org
Cc: John Stultz <john.stultz@linaro.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Deepa Dinamani <deepa.kernel@gmail.com>
Link: https://lkml.kernel.org/r/20171013183009.3442318-1-arnd@arndb.de
Diffstat (limited to 'kernel/time/posix-stubs.c')
| -rw-r--r-- | kernel/time/posix-stubs.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c index 06f34feb635e..b258bee13b02 100644 --- a/kernel/time/posix-stubs.c +++ b/kernel/time/posix-stubs.c @@ -117,8 +117,7 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, const struct timespec __user *, rqtp, struct timespec __user *, rmtp) { - struct timespec64 t64; - struct timespec t; + struct timespec64 t; switch (which_clock) { case CLOCK_REALTIME: @@ -129,16 +128,15 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, return -EINVAL; } - if (copy_from_user(&t, rqtp, sizeof (struct timespec))) + if (get_timespec64(&t, rqtp)) return -EFAULT; - t64 = timespec_to_timespec64(t); - if (!timespec64_valid(&t64)) + if (!timespec64_valid(&t)) return -EINVAL; if (flags & TIMER_ABSTIME) rmtp = NULL; current->restart_block.nanosleep.type = rmtp ? TT_NATIVE : TT_NONE; current->restart_block.nanosleep.rmtp = rmtp; - return hrtimer_nanosleep(&t64, flags & TIMER_ABSTIME ? + return hrtimer_nanosleep(&t, flags & TIMER_ABSTIME ? HRTIMER_MODE_ABS : HRTIMER_MODE_REL, which_clock); } @@ -203,8 +201,7 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, struct compat_timespec __user *, rqtp, struct compat_timespec __user *, rmtp) { - struct timespec64 t64; - struct timespec t; + struct timespec64 t; switch (which_clock) { case CLOCK_REALTIME: @@ -215,16 +212,15 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, return -EINVAL; } - if (compat_get_timespec(&t, rqtp)) + if (compat_get_timespec64(&t, rqtp)) return -EFAULT; - t64 = timespec_to_timespec64(t); - if (!timespec64_valid(&t64)) + if (!timespec64_valid(&t)) return -EINVAL; if (flags & TIMER_ABSTIME) rmtp = NULL; current->restart_block.nanosleep.type = rmtp ? TT_COMPAT : TT_NONE; current->restart_block.nanosleep.compat_rmtp = rmtp; - return hrtimer_nanosleep(&t64, flags & TIMER_ABSTIME ? + return hrtimer_nanosleep(&t, flags & TIMER_ABSTIME ? HRTIMER_MODE_ABS : HRTIMER_MODE_REL, which_clock); } |