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Commit bfaff75b authored by Jingoo Han's avatar Jingoo Han Committed by Herbert Xu
Browse files

hwrng: atmel - Use devm_ioremap_resource() 



Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().

Signed-off-by: default avatarJingoo Han <jg1.han@samsung.com>
Acked-by: default avatarPeter Korsgaard <jacmet@sunsite.dk>
Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 0fdefe2c

drivers/char/hw_random/atmel-rng.c

+4 −11
Original line number Diff line number Diff line
@@ -54,21 +54,14 @@ static int atmel_trng_probe(struct platform_device *pdev) 
	struct resource *res;

	int ret;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res)

		return -EINVAL;



	trng = devm_kzalloc(&pdev->dev, sizeof(*trng), GFP_KERNEL);

	if (!trng)

		return -ENOMEM;



	if (!devm_request_mem_region(&pdev->dev, res->start,

				     resource_size(res), pdev->name))

		return -EBUSY;



	trng->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));

	if (!trng->base)

		return -EBUSY;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	trng->base = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(trng->base))

		return PTR_ERR(trng->base);



	trng->clk = clk_get(&pdev->dev, NULL);

	if (IS_ERR(trng->clk))