kobj_uevent: Ignore if some listeners cannot handle message

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 <[email protected]>
Acked-by: Kay Sievers <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
1 file changed