scsi: qla2xxx: Fix incorrect reporting of task management failure

commit 58ca5999e0367d131de82a75257fbfd5aed0195d upstream.

User experienced no task management error while target device is responding
with error. The RSP_CODE field in the status IOCB is in little endian.
Driver assumes it's big endian and it picked up erroneous data.

Convert the data back to big endian as is on the wire.

Link: https://lore.kernel.org/r/20220310092604.22950-2-njavali@marvell.com
Fixes: faef62d13463 ("[SCSI] qla2xxx: Fix Task Management command asynchronous handling")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index aaf6504570fdd03ce3e0164861920b75178be01a..198b782d77901778e9825fe43cd9a11f420f441d 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2498,6 +2498,7 @@ qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
                iocb->u.tmf.data = QLA_FUNCTION_FAILED;
        } else if ((le16_to_cpu(sts->scsi_status) &
            SS_RESPONSE_INFO_LEN_VALID)) {
+               host_to_fcp_swap(sts->data, sizeof(sts->data));
                if (le32_to_cpu(sts->rsp_data_len) < 4) {
                        ql_log(ql_log_warn, fcport->vha, 0x503b,
                            "Async-%s error - hdl=%x not enough response(%d).\n",