make new Homework 8 work

fbd8857d · rtm · 37321196 · fbd8857d · fbd8857d
--- a/console.c
+++ b/console.c
@@ -71,7 +71,7 @@ cga_putc(int c)
  crt[pos] = ' ' | 0x0700;
 }

-static void
+void
 cons_putc(int c)
 {
  if(panicked){

--- a/ide.c
+++ b/ide.c
@@ -94,7 +94,6 @@ ide_intr(void)

  acquire(&ide_lock);
  if((b = ide_queue) == 0){
-    cprintf("stray ide interrupt\n");
    release(&ide_lock);
    return;
  }