phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe()

The for_each_available_child_of_node() calls of_node_put() to
release child_np in each success loop. After breaking from the
loop with the child_np has been released, the code will jump to
the put_child label and will call the of_node_put() again if the
devm_request_threaded_irq() fails. These cause a double free bug.

Fix by returning directly to avoid the duplicate of_node_put().

Fixes: ed2b5a8e6b98 ("phy: phy-rockchip-inno-usb2: support muxed interrupts")
Cc: [e-mail]
Signed-off-by: Wentao Liang <[e-mail]>
Reviewed-by: Neil Armstrong <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/rockchip/phy-rockchip-inno-usb2.c

···
 						rphy);
 		if (ret) {
 			dev_err_probe(rphy->dev, ret, "failed to request usb2phy irq handle\n");
-			goto put_child;
+			return ret;
 		}
 	}