1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sysproc.c b/kernel/sysproc.c
index ecaa8cc..1de184e 100644
--- a/kernel/sysproc.c
+++ b/kernel/sysproc.c
@@ -58,7 +58,7 @@ sys_sleep(void)
   acquire(&tickslock);
   ticks0 = ticks;
   while(ticks - ticks0 < n){
-    if(myproc()->killed){
+    if(killed(myproc())){
       release(&tickslock);
       return -1;
     }