pwm: puv3: Delete an error message for a failed memory allocation

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

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-puv3.c

@@ -107,10 +107,8 @@ static int pwm_probe(struct platform_device *pdev)
 	int ret;
 
 	puv3 = devm_kzalloc(&pdev->dev, sizeof(*puv3), GFP_KERNEL);
-	if (puv3 == NULL) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!puv3)
 		return -ENOMEM;
-	}
 
 	puv3->clk = devm_clk_get(&pdev->dev, "OST_CLK");
 	if (IS_ERR(puv3->clk))