ASoC: samsung: spdif: Handle return value of clk_prepare_enable.

clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/samsung/spdif.c

@@ -391,7 +391,9 @@ static int spdif_probe(struct platform_device *pdev)
 		ret = -ENOENT;
 		goto err0;
 	}
-	clk_prepare_enable(spdif->pclk);
+	ret = clk_prepare_enable(spdif->pclk);
+	if (ret)
+		goto err0;
 
 	spdif->sclk = devm_clk_get(&pdev->dev, "sclk_spdif");
 	if (IS_ERR(spdif->sclk)) {
@@ -399,7 +401,9 @@ static int spdif_probe(struct platform_device *pdev)
 		ret = -ENOENT;
 		goto err1;
 	}
-	clk_prepare_enable(spdif->sclk);
+	ret = clk_prepare_enable(spdif->sclk);
+	if (ret)
+		goto err1;
 
 	/* Request S/PDIF Register's memory region */
 	if (!request_mem_region(mem_res->start,