handle negative arguments to sleep() a little better

2022-09-09 09:17:37 -04:00 · 2022-09-09 09:17:37 -04:00 · 463ae0abc3
commit 463ae0abc3
parent f5b93ef12f
1 changed files with 2 additions and 0 deletions
--- a/kernel/sysproc.c
+++ b/kernel/sysproc.c
@ -55,6 +55,8 @@ sys_sleep(void)
  uint ticks0;

  argint(0, &n);
+  if(n < 0)
+    n = 0;
  acquire(&tickslock);
  ticks0 = ticks;
  while(ticks - ticks0 < n){