From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751087Ab1HVNwK (ORCPT ); Mon, 22 Aug 2011 09:52:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:16381 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750815Ab1HVNwJ (ORCPT ); Mon, 22 Aug 2011 09:52:09 -0400 From: Milan Broz To: linux-kernel@vger.kernel.org Cc: dm-devel@redhat.com, kay.sievers@vrfy.org, ebiederm@xmission.com, greg@kroah.com, Milan Broz Subject: [PATCH] kobj_uevent: Ignore if some listeners cannot handle message Date: Mon, 22 Aug 2011 15:51:34 +0200 Message-Id: <1314021094-15453-1-git-send-email-mbroz@redhat.com> In-Reply-To: <4E4ECA5D.1020907@redhat.com> References: <4E4ECA5D.1020907@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kobject_uevent() uses a multicast socket and should ignore if one of listeners cannot handle messages or nobody is listening at all. Easily reproducible when a process in system is cloned with CLONE_NEWNET flag. (See also http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/5256) Signed-off-by: Milan Broz --- lib/kobject_uevent.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 70af0a7..ad72a03 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -282,7 +282,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, kobj_bcast_filter, kobj); /* ENOBUFS should be handled in userspace */ - if (retval == -ENOBUFS) + if (retval == -ENOBUFS || retval == -ESRCH) retval = 0; } else retval = -ENOMEM; -- 1.7.6