From d720bcb0a8f246eb441ba9d4f341bc16746556c6 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@dreamhost.com>
Date: Thu, 2 Feb 2012 08:13:30 -0600
Subject: [PATCH] rbd: have rbd_get_client() return a rbd_client

Since rbd_get_client() currently returns an error code.  It assigns
the rbd_client field of the rbd_device structure it is passed if
successful.  Instead, have it return the created rbd_client
structure and return a pointer-coded error if there is an error.
This makes the assignment of the client pointer more obvious at the
call site.

Signed-off-by: Alex Elder <elder@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>
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