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-rw-r--r--kernel/sysproc.c2
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;
}