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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 <mbroz@redhat.com> Acked-by: Kay Sievers <kay.sievers@vrfy.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -282,7 +282,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
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kobj_bcast_filter,
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kobj);
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/* ENOBUFS should be handled in userspace */
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if (retval == -ENOBUFS)
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if (retval == -ENOBUFS || retval == -ESRCH)
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retval = 0;
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} else
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retval = -ENOMEM;
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