From: Sergey Klyaus <Sergey.Klyaus@tune-it.ru>
Date: Wed, 8 Oct 2014 07:31:54 +0000 (+0400)
Subject: driver core: fix race with userland in device_add()
X-Git-Tag: omap-for-v3.19/fixes-rc1~85^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cd75047de7f54d6fb4aba0ec5818f8194815a5a;p=pandora-kernel.git

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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