serial: max310x: use dev_err_probe() instead of dev_err()

Replace dev_err() with dev_err_probe().

This helps in simplifing code and standardizing the error output.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20240118152213.2644269-12-hugo@hugovil.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/max310x.c

@@ -1275,10 +1275,9 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty
 
 	/* Alloc port structure */
 	s = devm_kzalloc(dev, struct_size(s, p, devtype->nr), GFP_KERNEL);
-	if (!s) {
-		dev_err(dev, "Error allocating port structure\n");
-		return -ENOMEM;
-	}
+	if (!s)
+		return dev_err_probe(dev, -ENOMEM,
+				     "Error allocating port structure\n");
 
 	/* Always ask for fixed clock rate from a property. */
 	device_property_read_u32(dev, "clock-frequency", &uartclk);
@@ -1299,8 +1298,7 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty
 	if (freq == 0)
 		freq = uartclk;
 	if (freq == 0) {
-		dev_err(dev, "Cannot get clock rate\n");
-		ret = -EINVAL;
+		ret = dev_err_probe(dev, -EINVAL, "Cannot get clock rate\n");
 		goto out_clk;
 	}