From: Stefan Raspl <raspl@linux.vnet.ibm.com>
Date: Sun, 7 Apr 2013 22:19:27 +0000 (+0000)
Subject: qeth: fix qeth_wait_for_threads() deadlock for OSN devices
X-Git-Tag: v3.9-rc7~26^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=65d8013cbdc661f9cb7645148de1facfe3d0c88a;p=pandora-kernel.git

qeth: fix qeth_wait_for_threads() deadlock for OSN devices

Any recovery thread will deadlock when calling qeth_wait_for_threads(), most
notably when triggering a recovery on an OSN device.
This patch will store the recovery thread's task pointer on recovery
invocation and check in qeth_wait_for_threads() respectively to avoid
deadlocks.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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