From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Wed, 14 May 2014 19:34:47 +0000 (+0200)
Subject: drbd: fix drbd_destroy_device reference count updates
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~74^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8ba0d606933c34c13ea971491a7e0dfa50208ef;p=pandora-kernel.git

drbd: fix drbd_destroy_device reference count updates

drbd_destroy_device means to give up reference counts
on the connection(s) reachable via the peer_device(s).

It must not do that by iterating via device->resource->connections,
resource and connections may have already been disassociated
by drbd_free_resource, and we'd leak connection refs.

Instead, iterate via device->peer_devices->connection.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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