hwrng: omap - Delete an error message in of_get_omap_rng_device_details()

The function “platform_get_irq” can log an error already.
Thus omit a redundant message for the exception handling in the
calling function.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/omap-rng.c

@@ -392,11 +392,8 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
 	if (of_device_is_compatible(dev->of_node, "ti,omap4-rng") ||
 	    of_device_is_compatible(dev->of_node, "inside-secure,safexcel-eip76")) {
 		irq = platform_get_irq(pdev, 0);
-		if (irq < 0) {
-			dev_err(dev, "%s: error getting IRQ resource - %d\n",
-				__func__, irq);
+		if (irq < 0)
 			return irq;
-		}
 
 		err = devm_request_irq(dev, irq, omap4_rng_irq,
 				       IRQF_TRIGGER_NONE, dev_name(dev), priv);