hwrng: nomadik - use dev_err_probe

Use dev_err_probe to print a message and return an error. This makes the
code a tiny bit shorter.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/nomadik-rng.c

@@ -39,11 +39,8 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
 	int ret;
 
 	rng_clk = devm_clk_get_enabled(&dev->dev, NULL);
-	if (IS_ERR(rng_clk)) {
-		dev_err(&dev->dev, "could not get rng clock\n");
-		ret = PTR_ERR(rng_clk);
-		return ret;
-	}
+	if (IS_ERR(rng_clk))
+		return dev_err_probe(&dev->dev, PTR_ERR(rng_clk), "could not get rng clock\n");
 
 	ret = amba_request_regions(dev, dev->dev.init_name);
 	if (ret)