diff --git a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
index ec804c7cd06d2d..ca362db1602aa9 100644
--- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
@@ -591,8 +591,8 @@ static int notrace noinline fiq_fsm_update_hs_isoc(struct fiq_state *state, int
 		}
 
 	} else {
-		switch (st->hcchar_copy.b.multicnt) {
 		st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps;
+		switch (st->hcchar_copy.b.multicnt) {
 		case 1:
 			st->hctsiz_copy.b.pid = DWC_PID_DATA0;
 			break;