From 94bbac4052eb93219ca0aa370ca741486b25fb98 Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Thu, 24 Apr 2014 18:53:50 -0600
Subject: [PATCH] NVMe: Protect against badly formatted CQEs

If a misbehaving device posts a CQE with a command id < depth but for
one that was never allocated, the command info will have a callback
function set to NULL and we don't want to try invoking that.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
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Reading git-format-patch failed