From 3f42327d474db506e6ac335af7099e7ffc15d28d Mon Sep 17 00:00:00 2001
From: "Dobrazupa.org staff" <crawl-dev@dobrazupa.org>
Date: Mon, 20 May 2013 14:44:41 -0400
Subject: [PATCH] ee: don't crash when editing zero-byte files.

---
 ee.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ee.c b/ee.c
index 6312706..b26c913 100644
--- a/ee.c
+++ b/ee.c
@@ -1925,7 +1925,7 @@ char *file_name;
 		in_string[length] = 0;
 		get_line(length, in_string, &append);
 	}
-	if ((can_read) && (curr_line->line_length == 1))
+	if ((can_read) && (curr_line->line_length == 1) && (curr_line->prev_line))
 	{
 		temp_line = curr_line->prev_line;
 		temp_line->next_line = curr_line->next_line;