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authorArvind Yadav <arvind.yadav.cs@gmail.com>2017-07-25 15:44:31 +0530
committerMark Brown <broonie@kernel.org>2017-07-26 13:00:27 +0100
commitf5c97c7b0438bec0aad9738af1baa698dae5bc09 (patch)
tree58550e9d361c51c0e62de41cf002729cc7fead92 /sound/soc/samsung
parenta7ad9a88300c813a945793e9dae84ceaf7809141 (diff)
ASoC: samsung: i2s: 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>
Diffstat (limited to 'sound/soc/samsung')
-rw-r--r--sound/soc/samsung/i2s.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index c9f87f7bae99..daf7b892c967 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -551,7 +551,9 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
goto err;
}
- clk_prepare_enable(i2s->op_clk);
+ ret = clk_prepare_enable(i2s->op_clk);
+ if (ret)
+ goto err;
i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
/* Over-ride the other's */
@@ -1133,10 +1135,19 @@ static int i2s_runtime_suspend(struct device *dev)
static int i2s_runtime_resume(struct device *dev)
{
struct i2s_dai *i2s = dev_get_drvdata(dev);
+ int ret;
- clk_prepare_enable(i2s->clk);
- if (i2s->op_clk)
- clk_prepare_enable(i2s->op_clk);
+ ret = clk_prepare_enable(i2s->clk);
+ if (ret)
+ return ret;
+
+ if (i2s->op_clk) {
+ ret = clk_prepare_enable(i2s->op_clk);
+ if (ret) {
+ clk_disable_unprepare(i2s->clk);
+ return ret;
+ }
+ }
writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);