From 5214b729e1c2dc3af8f55e6c4c548844c3bea0f5 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Fri, 28 Mar 2008 14:15:55 -0700
Subject: [PATCH] afs: prevent double cell registration

kafs doesn't check if the cell already exists - so if you do an echo "add
newcell.org 1.2.3.4" >/proc/fs/afs/cells it will try to create this cell
again.  kobject will also complain about a double registration.  To prevent
such problems, return -EEXIST in that case.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
Reading git-format-patch failed