i broke sbrk, fix it

1 files changed, 0 insertions, 1 deletions

diff --git a/trap.c b/trap.c
index f9a9fc8..ef40f7e 100644
--- a/trap.c
+++ b/trap.c
@@ -37,7 +37,6 @@ trap(struct trapframe *tf)
 
   if(v == T_SYSCALL){
     struct proc *cp = curproc[cpu()];
-    int num = cp->tf->eax;
     if(cp->killed)
       proc_exit();
     cp->tf = tf;