scsi: target: Compare explicitly with SAM_STAT_GOOD

Instead of leaving it implicit that SAM_STAT_GOOD == 0, compare explicitly
with SAM_STAT_GOOD.

Link: https://lore.kernel.org/r/20210415220826.29438-18-bvanassche@acm.orgReviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/target/target_core_pscsi.c

@@ -1046,7 +1046,7 @@ static void pscsi_req_done(struct request *req, blk_status_t status)
 	int result = scsi_req(req)->result;
 	u8 scsi_status = status_byte(result) << 1;
 
-	if (scsi_status) {
+	if (scsi_status != SAM_STAT_GOOD) {
 		pr_debug("PSCSI Status Byte exception at cmd: %p CDB:"
 			" 0x%02x Result: 0x%08x\n", cmd, pt->pscsi_cdb[0],
 			result);