hwrng: exynos - remove redundant dev_err call in exynos_trng_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/exynos-trng.c

@@ -129,10 +129,8 @@ static int exynos_trng_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	trng->mem = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(trng->mem)) {
-		dev_err(&pdev->dev, "Could not map IO resources.\n");
+	if (IS_ERR(trng->mem))
 		return PTR_ERR(trng->mem);
-	}
 
 	pm_runtime_enable(&pdev->dev);
 	ret = pm_runtime_get_sync(&pdev->dev);