backing-dev: convert class code to use dev_groups
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 24 Jul 2013 22:05:26 +0000 (15:05 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 20 Aug 2013 04:22:34 +0000 (21:22 -0700)
The dev_attrs field of struct class is going away soon, dev_groups
should be used instead.  This converts the backing device class code to
use the correct field.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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