From c465e7782a43027fc2fcc7bb9a25793d3de210b5 Mon Sep 17 00:00:00 2001
From: ClawSeven <zehuan97@gmail.com>
Date: Wed, 17 Jan 2024 16:05:36 +0800
Subject: [PATCH] [libos] Fix clock_getres return successfully with wrong clock
 id

---
 src/libos/src/syscall/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libos/src/syscall/mod.rs b/src/libos/src/syscall/mod.rs
index ac8f58e0..3c0ee5ed 100644
--- a/src/libos/src/syscall/mod.rs
+++ b/src/libos/src/syscall/mod.rs
@@ -952,11 +952,12 @@ fn do_time(tloc_u: *mut time_t) -> Result<isize> {
 }
 
 fn do_clock_getres(clockid: clockid_t, res_u: *mut timespec_t) -> Result<isize> {
+    let clockid = time::ClockID::from_raw(clockid)?;
     if res_u.is_null() {
         return Ok(0);
     }
     check_mut_ptr(res_u)?;
-    let clockid = time::ClockID::from_raw(clockid)?;
+
     let res = time::do_clock_getres(clockid)?;
     unsafe {
         *res_u = res;