From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Sat, 13 Apr 2013 10:58:55 +0000 (+0200)
Subject: s390/cio: split subchannel registration
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~146^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c135ad1caffe2b35d6316758a605a2b63ca22bb3;p=pandora-kernel.git

s390/cio: split subchannel registration

Split the subchannel registration in device_initialize and device_add
and move the initialization part inside the allocation function. With
this change we can use refcounting during the complete lifespan of a
subchannel which is important for devices where we do the actually
registration at a later time.

Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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