clk: sunxi-ng: ccu-sun9i-a80-usb: Use dev_err_probe() helper

dev_err() can be replace with dev_err_probe() which will check if error
code is -EPROBE_DEFER.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220827094151.3323450-3-yangyingliang@huawei.com

Author: Yang Yingliang

drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c

@@ -101,12 +101,9 @@ static int sun9i_a80_usb_clk_probe(struct platform_device *pdev)
 		return PTR_ERR(reg);
 
 	bus_clk = devm_clk_get(&pdev->dev, "bus");
-	if (IS_ERR(bus_clk)) {
-		ret = PTR_ERR(bus_clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(bus_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(bus_clk),
+				     "Couldn't get bus clk\n");
 
 	/* The bus clock needs to be enabled for us to access the registers */
 	ret = clk_prepare_enable(bus_clk);