From: Alex Elder <elder@inktank.com>
Date: Wed, 11 Jul 2012 01:30:10 +0000 (-0500)
Subject: rbd: have __rbd_add_snap_dev() return a pointer
X-Git-Tag: v3.6-rc1~36^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e891e0af0f0011c90067373c46d7228568ec079;p=pandora-kernel.git

rbd: have __rbd_add_snap_dev() return a pointer

It's not obvious whether the snapshot pointer whose address is
provided to __rbd_add_snap_dev() will be assigned by that function.
Change it to return the snapshot, or a pointer-coded errno in the
event of a failure.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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