From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 8 Aug 2009 21:58:52 +0000 (+0400)
Subject: fix the crap in dst/dcore
X-Git-Tag: v2.6.33-rc1~49^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=306bb73d12f13684ffcd735838c3e6f7515ab626;p=pandora-kernel.git

fix the crap in dst/dcore

* don't reinvent the wheels, please - open_bdev_exclusive() is there
  for purpose
* both open_by_devnum() and open_bdev_exclusive() return ERR_PTR(...)
  upon error, not NULL

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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