usb: renesas_usbhs: Use devm_usb_get_phy()

The gpriv->transceiver is retrieved in probe() through usb_get_phy() but
never released. Use devm_usb_get_phy() to handle this scenario.

This issue was identified through code investigation. No issue was found
without this change.

Fixes: b5a2875 ("usb: renesas_usbhs: Allow an OTG PHY driver to provide VBUS")
Cc: stable <[email protected]>
Reviewed-by: Yoshihiro Shimoda <[email protected]>
Tested-by: Yoshihiro Shimoda <[email protected]>
Signed-off-by: Claudiu Beznea <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: claudiubeznea

drivers/usb/renesas_usbhs/mod_gadget.c

@@ -1094,7 +1094,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 		goto usbhs_mod_gadget_probe_err_gpriv;
 	}
 
-	gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
+	gpriv->transceiver = devm_usb_get_phy(dev, USB_PHY_TYPE_UNDEFINED);
 	dev_info(dev, "%stransceiver found\n",
 		 !IS_ERR(gpriv->transceiver) ? "" : "no ");