usb: gadget: tegra-xudc: Remove unneeded return variable

The 'ret' variable in the function tegra_xudc_gadget_vbus_draw() is not
needed and so remove this variable.
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20230405181854.42355-2-jonathanh@nvidia.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/udc/tegra-xudc.c

@@ -2162,15 +2162,14 @@ static int tegra_xudc_gadget_stop(struct usb_gadget *gadget)
 static int tegra_xudc_gadget_vbus_draw(struct usb_gadget *gadget,
 						unsigned int m_a)
 {
-	int ret = 0;
 	struct tegra_xudc *xudc = to_xudc(gadget);
 
 	dev_dbg(xudc->dev, "%s: %u mA\n", __func__, m_a);
 
 	if (xudc->curr_usbphy && xudc->curr_usbphy->chg_type == SDP_TYPE)
-		ret = usb_phy_set_power(xudc->curr_usbphy, m_a);
+		return usb_phy_set_power(xudc->curr_usbphy, m_a);
 
-	return ret;
+	return 0;
 }
 
 static int tegra_xudc_set_selfpowered(struct usb_gadget *gadget, int is_on)