From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50766 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423659AbeCBIzY (ORCPT ); Fri, 2 Mar 2018 03:55:24 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Al Viro , Sasha Levin Subject: [PATCH 4.4 06/34] sget(): handle failures of register_shrinker() Date: Fri, 2 Mar 2018 09:51:02 +0100 Message-Id: <20180302084436.414587775@linuxfoundation.org> In-Reply-To: <20180302084435.842679610@linuxfoundation.org> References: <20180302084435.842679610@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Al Viro [ Upstream commit 9ee332d99e4d5a97548943b81c54668450ce641b ] Signed-off-by: Al Viro Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- fs/super.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/fs/super.c +++ b/fs/super.c @@ -497,7 +497,11 @@ retry: hlist_add_head(&s->s_instances, &type->fs_supers); spin_unlock(&sb_lock); get_filesystem(type); - register_shrinker(&s->s_shrink); + err = register_shrinker(&s->s_shrink); + if (err) { + deactivate_locked_super(s); + s = ERR_PTR(err); + } return s; }