ASoC: sun4i-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>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
index c49f3757b686..b4af4aabead1 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)