Hi Andrew,

Patch to catch invalid dentry when calculating it's path.

Signed-off-by: Ian Kent <[EMAIL PROTECTED]>

Ian

---
diff -up linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c.getpath-check-valid-dentry 
linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c
--- linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c.getpath-check-valid-dentry  
2008-02-20 12:55:39.000000000 +0900
+++ linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c     2008-02-20 12:54:46.000000000 
+0900
@@ -171,7 +171,7 @@ static int autofs4_getpath(struct autofs
        for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent)
                len += tmp->d_name.len + 1;
 
-       if (--len > NAME_MAX) {
+       if (!len || --len > NAME_MAX) {
                spin_unlock(&dcache_lock);
                return 0;
        }
--
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