linux-kernel - [211/264] iscsi-target: Add missing CMDSN_LOWER_THAN_EXP check in iscsit_handle_scsi

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Date:	Wed, 09 Nov 2011 13:34:18 -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, Andy Grover <agrover@...hat.com>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [211/264] iscsi-target: Add missing CMDSN_LOWER_THAN_EXP check in iscsit_handle_scsi_cmd

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

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

From: Nicholas Bellinger <nab@...ux-iscsi.org>

commit 7e32da55e26b80d57961681e53aa67938268db3f upstream.

This patch adds a missing CMDSN_LOWER_THAN_EXP return check for
iscsit_sequence_cmd() in iscsit_handle_scsi_cmd() that was incorrectly
dropped during the v3.1-rc cleanups to use iscsit_sequence_cmd().

Cc: Andy Grover <agrover@...hat.com>
Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/target/iscsi/iscsi_target.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1079,7 +1079,9 @@ attach_cmd:
 	 */
 	if (!cmd->immediate_data) {
 		cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
-		if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+		if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
+			return 0;
+		else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
 			return iscsit_add_reject_from_cmd(
 				ISCSI_REASON_PROTOCOL_ERROR,
 				1, 0, buf, cmd);


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