pinctrl: samsung: Remove an always false dev->of_node test

samsung_pinctrl_probe() can be called only after matching
the driver by the compatible string so this already implies
a non null dev->of_node.  Remove the always false test
and related error trace. While at it drop another error log
in case of memory allocation failure - any errors are logged
by the memory subsystem.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/samsung/pinctrl-samsung.c

@@ -1041,17 +1041,9 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
 	struct resource *res;
 	int ret;
 
-	if (!dev->of_node) {
-		dev_err(dev, "device tree node not found\n");
-		return -ENODEV;
-	}
-
 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
-	if (!drvdata) {
-		dev_err(dev, "failed to allocate memory for driver's "
-				"private data\n");
+	if (!drvdata)
 		return -ENOMEM;
-	}
 
 	ctrl = samsung_pinctrl_get_soc_data(drvdata, pdev);
 	if (IS_ERR(ctrl)) {