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[08/11] ASoC: sun4i-spdif: Handle return value of clk_prepare_enable.

Message ID 1500977718-28010-1-git-send-email-arvind.yadav.cs@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Arvind Yadav July 25, 2017, 10:15 a.m. UTC 
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
 sound/soc/sunxi/sun4i-spdif.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
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Patch

diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
index eaefd07..4a316c0 100644
--- a/sound/soc/sunxi/sun4i-spdif.c
+++ b/sound/soc/sunxi/sun4i-spdif.c
@@ -458,11 +458,16 @@  static int sun4i_spdif_runtime_suspend(struct device *dev)
 static int sun4i_spdif_runtime_resume(struct device *dev)
 {
 	struct sun4i_spdif_dev *host  = dev_get_drvdata(dev);
+	int ret;
 
-	clk_prepare_enable(host->spdif_clk);
-	clk_prepare_enable(host->apb_clk);
+	ret = clk_prepare_enable(host->spdif_clk);
+	if (ret)
+		return ret;
+	ret = clk_prepare_enable(host->apb_clk);
+	if (ret)
+		clk_disable_unprepare(host->spdif_clk);
 
-	return 0;
+	return ret;
 }
 
 static int sun4i_spdif_probe(struct platform_device *pdev)