From: Stefan Haberland <stefan.haberland@de.ibm.com>
Date: Mon, 24 Nov 2014 09:59:44 +0000 (+0100)
Subject: s390/dasd: fix list corruption for sleep_on requests
X-Git-Tag: omap-for-v3.19/fixes-rc1~124^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=932f0549f872cde022eed200910ee3291b1d3c69;p=pandora-kernel.git

s390/dasd: fix list corruption for sleep_on requests

Fix race for sleep_on requests leading to list corruption.
The SLEEP_ON_END_TAG is set during CQR clean up. Remove it from
interrupt handler to avoid the CQR from being cleared when it is
still in the device_queue.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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