From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Nickolai Zeldovich , Trond Myklebust Subject: [ 054/123] nfs: avoid dereferencing null pointer in initiate_bulk_draining Date: Wed, 9 Jan 2013 12:34:53 -0800 Message-Id: <20130109201505.473704111@linuxfoundation.org> In-Reply-To: <20130109201458.392601412@linuxfoundation.org> References: <20130109201458.392601412@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.7-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nickolai Zeldovich commit ecf0eb9edbb607d74f74b73c14af8b43f3729528 upstream. Fix an inverted null pointer check in initiate_bulk_draining(). Signed-off-by: Nickolai Zeldovich Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman --- fs/nfs/callback_proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -205,7 +205,7 @@ static u32 initiate_bulk_draining(struct list_for_each_entry(lo, &server->layouts, plh_layouts) { ino = igrab(lo->plh_inode); - if (ino) + if (!ino) continue; spin_lock(&ino->i_lock); /* Is this layout in the process of being freed? */