linux-kernel - [232/264] target: Fix incorrect se_cmd assignment in core_tmr_drain_tmr

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Message-Id: <20111109213205.845999608@clark.kroah.org>
Date:	Wed, 09 Nov 2011 13:34:39 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Joern Engel <joern@...fs.org>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [232/264] target: Fix incorrect se_cmd assignment in core_tmr_drain_tmr_list

3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Joern Engel <joern@...fs.org>

commit 80ccbc8e00f7001d79dd503c2781487906b98611 upstream.

This patch fixes a bug in core_tmr_drain_tmr_list() where drain_tmr_list
was using the wrong se_tmr_req for cmd assignment due to a typo during the
LUN_RESET re-org.  This was resulting in general protection faults while
using the leftover bogus *tmr_p pointer from list_for_each_entry_safe().

Signed-off-by: Joern Engel <joern@...fs.org>
Cc: Joern Engel <joern@...fs.org>
Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/target/target_core_tmr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -155,7 +155,7 @@ static void core_tmr_drain_tmr_list(
 	while (!list_empty(&drain_tmr_list)) {
 		tmr = list_entry(drain_tmr_list.next, struct se_tmr_req, tmr_list);
 		list_del(&tmr->tmr_list);
-		cmd = tmr_p->task_cmd;
+		cmd = tmr->task_cmd;
 
 		pr_debug("LUN_RESET: %s releasing TMR %p Function: 0x%02x,"
 			" Response: 0x%02x, t_state: %d\n",


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