panic on disk error

a8de5ae5 · Nickolai Zeldovich · 30e87b13 · a8de5ae5
--- a/ide.c
+++ b/ide.c
@@ -39,8 +39,10 @@ idewait(int checkerr)

  while(((r = inb(0x1f7)) & (IDE_BSY|IDE_DRDY)) != IDE_DRDY) 
    ;
-  if(checkerr && (r & (IDE_DF|IDE_ERR)) != 0)
+  if(checkerr && (r & (IDE_DF|IDE_ERR)) != 0) {
+    panic("idewait");
    return -1;
+  }
  return 0;
 }