cifs: check MaxPathNameComponentLength != 0 before using it

[pandora-kernel.git] / fs / cifs / dir.c

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index a1c99c4..22758b1 100644 (file)
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -521,7 +521,8 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
        oplock = pTcon->ses->server->oplocks ? REQ_OPLOCK : 0;
 
        /* Don't allow path components longer than the server max. */
-       if (unlikely(direntry->d_name.len >
+       if (unlikely(pTcon->fsAttrInfo.MaxPathNameComponentLength &&
+                    direntry->d_name.len >
                     le32_to_cpu(pTcon->fsAttrInfo.MaxPathNameComponentLength))) {
                rc = -ENAMETOOLONG;
                goto lookup_out;