This is better style as it ensures we don't try to do the ASoC probe without required resources. Also convert to devm_ while we're at it, saving a bit of code, and fix a leak of enable on error.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/sta32x.c | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-)
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index 51b7313..039597e 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -825,22 +825,11 @@ static int sta32x_probe(struct snd_soc_codec *codec) sta32x->codec = codec; sta32x->pdata = dev_get_platdata(codec->dev);
- /* regulators */ - for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++) - sta32x->supplies[i].supply = sta32x_supply_names[i]; - - ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(sta32x->supplies), - sta32x->supplies); - if (ret != 0) { - dev_err(codec->dev, "Failed to request supplies: %d\n", ret); - goto err; - } - ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); if (ret != 0) { dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); - goto err_get; + return ret; }
/* Tell ASoC what kind of I/O to use to read the registers. ASoC will @@ -849,7 +838,7 @@ static int sta32x_probe(struct snd_soc_codec *codec) ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C); if (ret < 0) { dev_err(codec->dev, "failed to set cache I/O (ret=%i)\n", ret); - return ret; + goto err; }
/* Chip documentation explicitly requires that the reset values @@ -915,9 +904,8 @@ static int sta32x_probe(struct snd_soc_codec *codec)
return 0;
-err_get: - regulator_bulk_free(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); err: + regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); return ret; }
@@ -928,7 +916,6 @@ static int sta32x_remove(struct snd_soc_codec *codec) sta32x_watchdog_stop(sta32x); sta32x_set_bias_level(codec, SND_SOC_BIAS_OFF); regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); - regulator_bulk_free(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
return 0; } @@ -966,13 +953,24 @@ static __devinit int sta32x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct sta32x_priv *sta32x; - int ret; + int ret, i;
sta32x = devm_kzalloc(&i2c->dev, sizeof(struct sta32x_priv), GFP_KERNEL); if (!sta32x) return -ENOMEM;
+ /* regulators */ + for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++) + sta32x->supplies[i].supply = sta32x_supply_names[i]; + + ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(sta32x->supplies), + sta32x->supplies); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + i2c_set_clientdata(i2c, sta32x);
ret = snd_soc_register_codec(&i2c->dev, &sta32x_codec, &sta32x_dai, 1);