Simplify the machine drivers for newer SoCs a bit by using the devm_* function calls that automatically release the resources when the driver is removed or when probing fails.
Cc: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Stephan Gerhold stephan@gerhold.net --- sound/soc/qcom/apq8096.c | 28 +++------------------------- sound/soc/qcom/common.c | 3 +-- sound/soc/qcom/sdm845.c | 40 ++++++---------------------------------- 3 files changed, 10 insertions(+), 61 deletions(-)
diff --git a/sound/soc/qcom/apq8096.c b/sound/soc/qcom/apq8096.c index 287ad2aa27f3..134f5a81df7f 100644 --- a/sound/soc/qcom/apq8096.c +++ b/sound/soc/qcom/apq8096.c @@ -109,7 +109,7 @@ static int apq8096_platform_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; int ret;
- card = kzalloc(sizeof(*card), GFP_KERNEL); + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); if (!card) return -ENOMEM;
@@ -117,31 +117,10 @@ static int apq8096_platform_probe(struct platform_device *pdev) dev_set_drvdata(dev, card); ret = qcom_snd_parse_of(card); if (ret) - goto err; + return ret;
apq8096_add_be_ops(card); - ret = snd_soc_register_card(card); - if (ret) - goto err_card_register; - - return 0; - -err_card_register: - kfree(card->dai_link); -err: - kfree(card); - return ret; -} - -static int apq8096_platform_remove(struct platform_device *pdev) -{ - struct snd_soc_card *card = dev_get_drvdata(&pdev->dev); - - snd_soc_unregister_card(card); - kfree(card->dai_link); - kfree(card); - - return 0; + return devm_snd_soc_register_card(dev, card); }
static const struct of_device_id msm_snd_apq8096_dt_match[] = { @@ -153,7 +132,6 @@ MODULE_DEVICE_TABLE(of, msm_snd_apq8096_dt_match);
static struct platform_driver msm_snd_apq8096_driver = { .probe = apq8096_platform_probe, - .remove = apq8096_platform_remove, .driver = { .name = "msm-snd-apq8096", .of_match_table = msm_snd_apq8096_dt_match, diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c index 8ada4ecba847..d677e83828af 100644 --- a/sound/soc/qcom/common.c +++ b/sound/soc/qcom/common.c @@ -36,7 +36,7 @@ int qcom_snd_parse_of(struct snd_soc_card *card) num_links = of_get_child_count(dev->of_node);
/* Allocate the DAI link array */ - card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL); + card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); if (!card->dai_link) return -ENOMEM;
@@ -143,7 +143,6 @@ int qcom_snd_parse_of(struct snd_soc_card *card) of_node_put(cpu); of_node_put(codec); of_node_put(platform); - kfree(card->dai_link); return ret; } EXPORT_SYMBOL(qcom_snd_parse_of); diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c index 68e9388ff46f..580acfaf38e7 100644 --- a/sound/soc/qcom/sdm845.c +++ b/sound/soc/qcom/sdm845.c @@ -543,16 +543,14 @@ static int sdm845_snd_platform_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; int ret;
- card = kzalloc(sizeof(*card), GFP_KERNEL); + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); if (!card) return -ENOMEM;
/* Allocate the private data */ - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) { - ret = -ENOMEM; - goto data_alloc_fail; - } + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM;
card->dapm_widgets = sdm845_snd_widgets; card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets); @@ -560,38 +558,13 @@ static int sdm845_snd_platform_probe(struct platform_device *pdev) dev_set_drvdata(dev, card); ret = qcom_snd_parse_of(card); if (ret) - goto parse_dt_fail; + return ret;
data->card = card; snd_soc_card_set_drvdata(card, data);
sdm845_add_ops(card); - ret = snd_soc_register_card(card); - if (ret) { - dev_err(dev, "Sound card registration failed\n"); - goto register_card_fail; - } - return ret; - -register_card_fail: - kfree(card->dai_link); -parse_dt_fail: - kfree(data); -data_alloc_fail: - kfree(card); - return ret; -} - -static int sdm845_snd_platform_remove(struct platform_device *pdev) -{ - struct snd_soc_card *card = dev_get_drvdata(&pdev->dev); - struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); - - snd_soc_unregister_card(card); - kfree(card->dai_link); - kfree(data); - kfree(card); - return 0; + return devm_snd_soc_register_card(dev, card); }
static const struct of_device_id sdm845_snd_device_id[] = { @@ -604,7 +577,6 @@ MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
static struct platform_driver sdm845_snd_driver = { .probe = sdm845_snd_platform_probe, - .remove = sdm845_snd_platform_remove, .driver = { .name = "msm-snd-sdm845", .of_match_table = sdm845_snd_device_id,