From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Sat, 10 Mar 2012 07:45:38 +0000 (-0800)
Subject: tcm_fc: Fix fc_exch memory leak in ft_send_resp_status
X-Git-Tag: v3.2.14~82
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a0aae0c2e37ed923640e8646a392814a76bed6a;p=pandora-kernel.git

tcm_fc: Fix fc_exch memory leak in ft_send_resp_status

commit 031ed4d565b31880a4136bb7366bc89f5b1dba7d upstream.

This patch fixes a bug in tcm_fc where fc_exch memory from fc_exch_mgr->ep_pool
is currently being leaked by ft_send_resp_status() usage.  Following current
code in ft_queue_status() response path, using lport->tt.seq_send() needs to be
followed by a lport->tt.exch_done() in order to release fc_exch memory back into
libfc_em kmem_cache.

ft_send_resp_status() code is currently used in pre submit se_cmd ft_send_work()
error exceptions, TM request setup exceptions, and main TM response callback
path in ft_queue_tm_resp().  This bugfix addresses the leak in these cases.

Cc: Mark D Rustad <mark.d.rustad@intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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