From: Ralph Wuerthner <rwuerthn@de.ibm.com>
Date: Mon, 26 Mar 2007 18:42:42 +0000 (+0200)
Subject: [S390] zcrypt: Fix possible dead lock in AP bus module.
X-Git-Tag: v2.6.21-rc6~115^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6a48264739e3486f66e5b21a543c9573b713621;p=pandora-kernel.git

[S390] zcrypt: Fix possible dead lock in AP bus module.

If a AP device is unconfigured __ap_poll_all() will call
device_unregister() in software interrupt context which can cause
dead locks. To fix this the device will be only marked as unconfigured
and the device_unregister() call will be done later by either
ap_scan_bus() or ap_queue_message() in process context.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---

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