ASoC: samsung: Fix error handling for clock lookup

Return the error code we got from clk_get() and check to make sure that
clk_prepare_enable() worked.

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

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 0d76bc1..c60ab07 100644 (file)
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -972,6 +972,7 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
 {
        struct i2s_dai *i2s = to_info(dai);
        struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+       int ret;
 
        if (other && other->clk) { /* If this is probe on secondary */
                samsung_asoc_init_dma_data(dai, &other->sec_dai->dma_playback,
@@ -989,9 +990,14 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
        if (IS_ERR(i2s->clk)) {
                dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n");
                iounmap(i2s->addr);
-               return -ENOENT;
+               return PTR_ERR(i2s->clk);
+       }
+
+       ret = clk_prepare_enable(i2s->clk);
+       if (ret != 0) {
+               dev_err(&i2s->pdev->dev, "failed to enable clock: %d\n", ret);
+               return ret;
        }
-       clk_prepare_enable(i2s->clk);
 
        samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);