From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Date: Tue, 7 Apr 2015 14:53:46 +0000 (-0500)
Subject: powerpc/pseries: Correct memory hotplug locking
X-Git-Tag: omap-for-v4.1/fixes-rc1~126^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b0a478ede669949682b9c698f6146c0065543b91;p=pandora-kernel.git

powerpc/pseries: Correct memory hotplug locking

Memory dlpar handling can return from dlpar_memory() without releasing the
device_hotplug lock. Correct this routine to ensure the lock is released.

Fixes: 5f97b2a0d176 ("powerpc/pseries: Implement memory hotplug add in the kernel")
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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