From: Ma Ling <ling.ma@intel.com>
Date: Thu, 16 Apr 2009 09:51:25 +0000 (+0800)
Subject: drm: clean dirty memory after device release
X-Git-Tag: v2.6.30-rc3~40^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77d26dc9b9805f322f5a1f6e559b18ad66205bd9;p=pandora-kernel.git

drm: clean dirty memory after device release

In current code we register/unregister connector object by
drm_sysfs_connector_add/remove function.

However under some cases, we need to dynamically register or unregister device
multiple times, so we have to go through register -> unregister ->register
routine.

Because after device_unregister function our memory is dirty, we need to do
clean operation in order to re-register the device, otherwise the system
will crash.  The patch intends to clean device after device release.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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