From 5841734fa6f997e57e8c29cbb6409bd74a6949e8 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 5 Nov 2018 16:44:59 -0800
Subject: [PATCH] scsi: target/core: Avoid that a kernel oops is triggered when
COMPARE AND WRITE fails
Fixes: aa73237dcb2d ("scsi: target/core: Always call transport_complete_callback() upon failure")
Reviewed-by: David Disseldorp <ddiss@suse.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
drivers/target/target_core_transport.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index e31e4fc31aa150..2cfd61d62e9730 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1778,7 +1778,7 @@ EXPORT_SYMBOL(target_submit_tmr);
void transport_generic_request_failure(struct se_cmd *cmd,
sense_reason_t sense_reason)
{
- int ret = 0;
+ int ret = 0, post_ret;
pr_debug("-----[ Storage Engine Exception; sense_reason %d\n",
sense_reason);
@@ -1790,7 +1790,7 @@ void transport_generic_request_failure(struct se_cmd *cmd,
transport_complete_task_attr(cmd);
if (cmd->transport_complete_callback)
- cmd->transport_complete_callback(cmd, false, NULL);
+ cmd->transport_complete_callback(cmd, false, &post_ret);
if (transport_check_aborted_status(cmd, 1))
return;
--
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