ASoC: kirkwood: Delete an error message for a failed memory allocation in kirkwood_i2s_dev_probe()

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/kirkwood/kirkwood-i2s.c

@@ -538,10 +538,9 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 	int err;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		dev_err(&pdev->dev, "allocation failed\n");
+	if (!priv)
 		return -ENOMEM;
-	}
+
 	dev_set_drvdata(&pdev->dev, priv);
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);