From: Keith Busch <keith.busch@intel.com>
Date: Fri, 25 Apr 2014 00:53:50 +0000 (-0600)
Subject: NVMe: Protect against badly formatted CQEs
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~12^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94bbac4052eb93219ca0aa370ca741486b25fb98;p=pandora-kernel.git

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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