usb: dwc3-am62: Fix an OF node leak in phy_syscon_pll_refclk()

phy_syscon_pll_refclk() leaks an OF node obtained by
of_parse_phandle_with_fixed_args(), thus add an of_node_put() call.

Cc: stable <[email protected]>
Fixes: e8784c0 ("drivers: usb: dwc3: Add AM62 USB wrapper driver")
Signed-off-by: Joe Hattori <[email protected]>
Acked-by: Thinh Nguyen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: joehattori

drivers/usb/dwc3/dwc3-am62.c

@@ -170,6 +170,7 @@ static int phy_syscon_pll_refclk(struct dwc3_am62 *am62)
 	if (ret)
 		return ret;
 
+	of_node_put(args.np);
 	am62->offset = args.args[0];
 
 	/* Core voltage. PHY_CORE_VOLTAGE bit Recommended to be 0 always */