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

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

sound/soc/samsung/pcm.c

@@ -522,7 +522,9 @@ static int s3c_pcm_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to get audio-bus clock\n");
 		return PTR_ERR(pcm->cclk);
 	}
-	clk_prepare_enable(pcm->cclk);
+	ret = clk_prepare_enable(pcm->cclk);
+	if (ret)
+		return ret;
 
 	/* record our pcm structure for later use in the callbacks */
 	dev_set_drvdata(&pdev->dev, pcm);
@@ -533,7 +535,9 @@ static int s3c_pcm_dev_probe(struct platform_device *pdev)
 		ret = PTR_ERR(pcm->pclk);
 		goto err_dis_cclk;
 	}
-	clk_prepare_enable(pcm->pclk);
+	ret = clk_prepare_enable(pcm->pclk);
+	if (ret)
+		goto err_dis_cclk;
 
 	s3c_pcm_stereo_in[pdev->id].addr = mem_res->start + S3C_PCM_RXFIFO;
 	s3c_pcm_stereo_out[pdev->id].addr = mem_res->start + S3C_PCM_TXFIFO;