From: John Darrington <john@darrington.wattle.id.au>
Date: Sat, 4 May 2019 04:55:07 +0000 (+0200)
Subject: Correct thinko in previous commit
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eda9e0fe3636e8af0d937ce78f782ed01ecbb80e;p=pspp

Correct thinko in previous commit
---

diff --git a/src/output/driver.c b/src/output/driver.c
index 44aa255824..e4227b8ca5 100644
--- a/src/output/driver.c
+++ b/src/output/driver.c
@@ -76,7 +76,7 @@ static struct output_engine *
 engine_stack_top (void)
 {
   struct ll *head = ll_head (&engine_stack);
-  if (ll_is_empty (head))
+  if (ll_is_empty (&engine_stack))
     return NULL;
   return ll_data (head, struct output_engine, ll);
 }