hwrng: atmel - Use devm_clk_get()

Use devm_clk_get() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <[e-mail]>
Acked-by: Peter Korsgaard <[e-mail]>
Acked-by: Nicolas Ferre <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/char/hw_random/atmel-rng.c

···
 	if (IS_ERR(trng->base))
 		return PTR_ERR(trng->base);
 
-	trng->clk = clk_get(&pdev->dev, NULL);
+	trng->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(trng->clk))
 		return PTR_ERR(trng->clk);
 
 	ret = clk_enable(trng->clk);
 	if (ret)
-		goto err_enable;
+		return ret;
 
 	writel(TRNG_KEY | 1, trng->base + TRNG_CR);
 	trng->rng.name = pdev->name;
···
 
 err_register:
 	clk_disable(trng->clk);
-err_enable:
-	clk_put(trng->clk);
-
 	return ret;
 }
 
···
 
 	writel(TRNG_KEY, trng->base + TRNG_CR);
 	clk_disable(trng->clk);
-	clk_put(trng->clk);
 
 	return 0;
 }