commit f3bb467ff64b2598d023b3a07592748fa7768b6a
author Nicholas Bellinger <nab@linux-iscsi.org> Tue Sep 15 23:07:45 2015 -0700
committer Nicholas Bellinger <nab@linux-iscsi.org> Thu Sep 24 23:17:23 2015 -0700
tree 2c961b5c54a31d3bfc267f7308b2c32c26fd786e
parent eeeb9522231118138be418ff527dc8c9050f4707

target: Fix target_sense_desc_format NULL pointer dereference

This patch allows target_sense_desc_format() to be called without a
valid se_device pointer, which can occur during an early exception
ahead of transport_lookup_cmd_lun() setting up se_cmd->se_device.

This addresses a v4.3-rc1 specific NULL pointer dereference
regression introduced by commit 4e4937e8.

Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>