linux-kernel - [PATCH 05/11] ASoC: samsung: spdif: Handle return value of clk_prepare

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Date:   Tue, 25 Jul 2017 15:44:32 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     perex@...ex.cz, tiwai@...e.com, broonie@...nel.org,
        krzk@...nel.org, sbkim73@...sung.com, lgirdwood@...il.com
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH 05/11] 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@...il.com>
---
 sound/soc/samsung/spdif.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/samsung/spdif.c b/sound/soc/samsung/spdif.c
index 779504f..cb59911 100644
--- a/sound/soc/samsung/spdif.c
+++ b/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,
-- 
1.9.1