From 373665bbe5d757875d53d63b0a14bcdc10bb0e03 Mon Sep 17 00:00:00 2001
From: Robert Spalek <rspalek@gmail.com>
Date: Tue, 3 Feb 2009 22:48:47 -0800
Subject: [PATCH] make page_alloc(0) work

---
 ucw/bigalloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ucw/bigalloc.c b/ucw/bigalloc.c
index 7532a446..3133170e 100644
--- a/ucw/bigalloc.c
+++ b/ucw/bigalloc.c
@@ -17,6 +17,8 @@
 void *
 page_alloc(u64 len)
 {
+  if (!len)
+    return NULL;
   if (len > SIZE_MAX)
     die("page_alloc: Size %llu is too large for the current architecture", (long long) len);
   ASSERT(!(len & (CPU_PAGE_SIZE-1)));
-- 
2.39.2