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@xxxxxxxxxx>
Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
---
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,
--
2.27.0
