From: Olof Johansson <olof@lixom.net>
Date: Fri, 11 Apr 2014 22:19:41 +0000 (-0700)
Subject: i2c: s3c2410: resume race fix
X-Git-Tag: v3.2.60~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5b8d65ccb6e96f5fa066c018d9ef365fd3c8da9b;p=pandora-kernel.git

i2c: s3c2410: resume race fix

commit ce78cc071f5f541480e381cc0241d37590041a9d upstream.

Don't unmark the device as suspended until after it's been re-setup.

The main race would be w.r.t. an i2c driver that gets resumed at the same
time (asyncronously), that is allowed to do a transfer since suspended
is set to 0 before reinit, but really should have seen the -EIO return
instead.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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