scsi: target: tcmu: Do not queue aborted commands

If tcmu receives an already aborted command, tcmu_queue_cmd() should reject
it.

Link: https://lore.kernel.org/r/20200726153510.13077-5-bstroesser@ts.fujitsu.comReviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/target/target_core_user.c

@@ -1103,8 +1103,8 @@ tcmu_queue_cmd(struct se_cmd *se_cmd)
 	struct se_device *se_dev = se_cmd->se_dev;
 	struct tcmu_dev *udev = TCMU_DEV(se_dev);
 	struct tcmu_cmd *tcmu_cmd;
-	sense_reason_t scsi_ret;
-	int ret;
+	sense_reason_t scsi_ret = TCM_CHECK_CONDITION_ABORT_CMD;
+	int ret = -1;
 
 	tcmu_cmd = tcmu_alloc_cmd(se_cmd);
 	if (!tcmu_cmd)
@@ -1112,6 +1112,7 @@ tcmu_queue_cmd(struct se_cmd *se_cmd)
 
 	mutex_lock(&udev->cmdr_lock);
 	se_cmd->priv = tcmu_cmd;
+	if (!(se_cmd->transport_state & CMD_T_ABORTED))
 		ret = queue_cmd_ring(tcmu_cmd, &scsi_ret);
 	if (ret < 0)
 		tcmu_free_cmd(tcmu_cmd);