scsi: qla2xxx: Check correct variable in qla24xx_async_gffid()

There is a copy and paste bug here.  It should check ".rsp" instead of
".req".  The error message is copy and pasted as well so update that too.

Link: https://lore.kernel.org/r/YrK1A/t3L6HKnswO@kili
Fixes: 9c40c36e ("scsi: qla2xxx: edif: Reduce Initiator-Initiator thrashing")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_gs.c

@@ -3389,9 +3389,9 @@ int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport, bool wait)
 				sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
 				&sp->u.iocb_cmd.u.ctarg.rsp_dma,
 	    GFP_KERNEL);
-	if (!sp->u.iocb_cmd.u.ctarg.req) {
+	if (!sp->u.iocb_cmd.u.ctarg.rsp) {
 		ql_log(ql_log_warn, vha, 0xd041,
-		       "%s: Failed to allocate ct_sns request.\n",
+		       "%s: Failed to allocate ct_sns response.\n",
 		       __func__);
 		goto done_free_sp;
 	}