From 0cd75047de7f54d6fb4aba0ec5818f8194815a5a Mon Sep 17 00:00:00 2001
From: Sergey Klyaus <Sergey.Klyaus@tune-it.ru>
Date: Wed, 8 Oct 2014 11:31:54 +0400
Subject: [PATCH] driver core: fix race with userland in device_add()

bus_add_device() should be called before devtmpfs_create_node(), so when
userland application opens device from devtmpfs, it wouldn't get ENODEV
from kernel, because device_add() wasn't completed.

Signed-off-by: Sergey Klyaus <Sergey.Klyaus@Tune-IT.Ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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