From 214970da507b99008f2e19ddb5798ddb5061197b Mon Sep 17 00:00:00 2001
From: Timo Warns <Warns@pre-sense.de>
Date: Wed, 17 Aug 2011 17:59:56 +0200
Subject: [PATCH] --- yaml --- r: 263074 b: refs/heads/master c:
 338d0f0a6fbc82407864606f5b64b75aeb3c70f2 h: refs/heads/master v: v3

---
 [refs]                   |  2 +-
 trunk/fs/befs/linuxvfs.c | 23 ++++++++++++++---------
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/[refs] b/[refs]
index 5d414ebc15ad..c277ebd4bab4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b4fd4ae6c6420c18e4bae2c294b7e06f5ff5210f
+refs/heads/master: 338d0f0a6fbc82407864606f5b64b75aeb3c70f2
diff --git a/trunk/fs/befs/linuxvfs.c b/trunk/fs/befs/linuxvfs.c
index 54b8c28bebc8..720d885e8dca 100644
--- a/trunk/fs/befs/linuxvfs.c
+++ b/trunk/fs/befs/linuxvfs.c
@@ -474,17 +474,22 @@ befs_follow_link(struct dentry *dentry, struct nameidata *nd)
 		befs_data_stream *data = &befs_ino->i_data.ds;
 		befs_off_t len = data->size;
 
-		befs_debug(sb, "Follow long symlink");
-
-		link = kmalloc(len, GFP_NOFS);
-		if (!link) {
-			link = ERR_PTR(-ENOMEM);
-		} else if (befs_read_lsymlink(sb, data, link, len) != len) {
-			kfree(link);
-			befs_error(sb, "Failed to read entire long symlink");
+		if (len == 0) {
+			befs_error(sb, "Long symlink with illegal length");
 			link = ERR_PTR(-EIO);
 		} else {
-			link[len - 1] = '\0';
+			befs_debug(sb, "Follow long symlink");
+
+			link = kmalloc(len, GFP_NOFS);
+			if (!link) {
+				link = ERR_PTR(-ENOMEM);
+			} else if (befs_read_lsymlink(sb, data, link, len) != len) {
+				kfree(link);
+				befs_error(sb, "Failed to read entire long symlink");
+				link = ERR_PTR(-EIO);
+			} else {
+				link[len - 1] = '\0';
+			}
 		}
 	} else {
 		link = befs_ino->i_data.symlink;