From b628ea1f5cd046c9bd07c5ebef824bae08a85f1c Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Mon, 22 Aug 2011 15:51:34 +0200 Subject: kobj_uevent: Ignore if some listeners cannot handle message commit ebf4127cd677e9781b450e44dfaaa1cc595efcaa upstream. 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 Acked-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- lib/kobject_uevent.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 920a3ca6e259..507b821f4c16 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -235,7 +235,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, retval = netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL); /* ENOBUFS should be handled in userspace */ - if (retval == -ENOBUFS) + if (retval == -ENOBUFS || retval == -ESRCH) retval = 0; } else retval = -ENOMEM; -- cgit v1.2.3