linux-kernel - [PATCH 2/3] target: Generate failure for XCOPY I/O with non-zero scsi

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Date:	Thu, 24 Oct 2013 07:30:58 +0000
From:	"Nicholas A. Bellinger" <nab@...erainc.com>
To:	target-devel <target-devel@...r.kernel.org>
Cc:	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Thomas Glanzmann <thomas@...nzmann.de>,
	Douglas Gilbert <dgilbert@...erlog.com>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [PATCH 2/3] target: Generate failure for XCOPY I/O with non-zero scsi_status

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

This patch adds the missing non-zero se_cmd->scsi_status check required
for local XCOPY I/O within target_xcopy_issue_pt_cmd() to signal an
exception case failure.

This will trigger the generation of SAM_STAT_CHECK_CONDITION status
from within target_xcopy_do_work() process context code.

Reported-by: Thomas Glanzmann <thomas@...nzmann.de>
Reported-by: Douglas Gilbert <dgilbert@...erlog.com>
Cc: Thomas Glanzmann <thomas@...nzmann.de>
Cc: Douglas Gilbert <dgilbert@...erlog.com>
Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org>
---
 drivers/target/target_core_xcopy.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 5edcd2b..0e41143f 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -679,7 +679,8 @@ static int target_xcopy_issue_pt_cmd(struct xcopy_pt_cmd *xpt_cmd)
 
 	pr_debug("target_xcopy_issue_pt_cmd(): SCSI status: 0x%02x\n",
 			se_cmd->scsi_status);
-	return 0;
+
+	return (se_cmd->scsi_status) ? -EINVAL : 0;
 }
 
 static int target_xcopy_read_source(
-- 
1.7.2.5

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