From e4aa3e6ae2a82ecfce7eecc6c52dcaba7b9e3f84 Mon Sep 17 00:00:00 2001
From: Stephen Cameron <stephenmcameron@gmail.com>
Date: Fri, 23 Jan 2015 16:44:07 -0600
Subject: [PATCH] hpsa: do not ack controller events on controllers that do not
 support it

Acking controller events on controllers that do not support
it can cause such controllers to lock up.

Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Signed-off-by: Joe Handzik <joseph.t.handzik@hp.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Reading git-format-patch failed