tty: serial: fsl_lpuart: use dev_err_probe for clocks

Clocks might not be available yet when probing lpuart. Silence -517 errors
by using dev_err_probe.

Signed-off-by: Alexander Stein <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/fsl_lpuart.c

···
 	sport->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(sport->ipg_clk)) {
 		ret = PTR_ERR(sport->ipg_clk);
-		dev_err(&pdev->dev, "failed to get uart ipg clk: %d\n", ret);
-		return ret;
+		return dev_err_probe(&pdev->dev, ret, "failed to get uart ipg clk\n");
 	}
 
 	sport->baud_clk = NULL;
···
 		sport->baud_clk = devm_clk_get(&pdev->dev, "baud");
 		if (IS_ERR(sport->baud_clk)) {
 			ret = PTR_ERR(sport->baud_clk);
-			dev_err(&pdev->dev, "failed to get uart baud clk: %d\n", ret);
-			return ret;
+			return dev_err_probe(&pdev->dev, ret, "failed to get uart baud clk\n");
 		}
 	}