ASoC: samsung: s2c24xx-i2s: remove redundant error message

There is no need to report the resource request error in
the driver as it is already handled within devm_ioremap_resource().
While at it also drop a redundant variable initialization.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/samsung/s3c24xx-i2s.c

@@ -426,13 +426,9 @@ static const struct snd_soc_component_driver s3c24xx_i2s_component = {
 static int s3c24xx_iis_dev_probe(struct platform_device *pdev)
 {
 	struct resource *res;
-	int ret = 0;
+	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Can't get IO resource.\n");
-		return -ENOENT;
-	}
 	s3c24xx_i2s.regs = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(s3c24xx_i2s.regs))
 		return PTR_ERR(s3c24xx_i2s.regs);