From cfd22919f2d11a325c2c2a45a6eb97e36af4aef3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Wed, 5 Aug 2009 13:05:58 +0000
Subject: [PATCH] * FileMap::Translate() did not choke on negative offsets, and
 _Cache() does not   necessarily return an error in this case.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32129 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/kernel/cache/file_map.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/system/kernel/cache/file_map.cpp b/src/system/kernel/cache/file_map.cpp
index 68b88ddafd..669d88692c 100644
--- a/src/system/kernel/cache/file_map.cpp
+++ b/src/system/kernel/cache/file_map.cpp
@@ -393,6 +393,9 @@ status_t
 FileMap::Translate(off_t offset, size_t size, file_io_vec* vecs, size_t* _count,
 	size_t align)
 {
+	if (offset < 0)
+		return B_BAD_VALUE;
+
 	MutexLocker _(fLock);
 
 	size_t maxVecs = *_count;