This patch converts the resource management in PCI als300 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper, and the card object release is
managed now via card->private_free instead of a lowlevel snd_device.
This should give no user-visible functional changes.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/als300.c | 79 ++++++++++------------------------------------
1 file changed, 17 insertions(+), 62 deletions(-)
diff --git a/sound/pci/als300.c b/sound/pci/als300.c
index 668008fc21f7..9c94072572a5 100644
--- a/sound/pci/als300.c
+++ b/sound/pci/als300.c
@@ -163,21 +163,11 @@ static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd)
snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp);
}
-static int snd_als300_free(struct snd_als300 *chip)
+static void snd_als300_free(struct snd_card *card)
{
- snd_als300_set_irq_flag(chip, IRQ_DISABLE);
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
- pci_release_regions(chip->pci);
- pci_disable_device(chip->pci);
- kfree(chip);
- return 0;
-}
+ struct snd_als300 *chip = card->private_data;
-static int snd_als300_dev_free(struct snd_device *device)
-{
- struct snd_als300 *chip = device->device_data;
- return snd_als300_free(chip);
+ snd_als300_set_irq_flag(chip, IRQ_DISABLE);
}
static irqreturn_t snd_als300_interrupt(int irq, void *dev_id)
@@ -248,11 +238,6 @@ static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void snd_als300_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
-}
-
static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,
unsigned short reg)
{
@@ -610,35 +595,22 @@ static void snd_als300_init(struct snd_als300 *chip)
}
static int snd_als300_create(struct snd_card *card,
- struct pci_dev *pci, int chip_type,
- struct snd_als300 **rchip)
+ struct pci_dev *pci, int chip_type)
{
- struct snd_als300 *chip;
+ struct snd_als300 *chip = card->private_data;
void *irq_handler;
int err;
- static const struct snd_device_ops ops = {
- .dev_free = snd_als300_dev_free,
- };
- *rchip = NULL;
-
- err = pci_enable_device(pci);
+ err = pcim_enable_device(pci);
if (err < 0)
return err;
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) {
dev_err(card->dev, "error setting 28bit DMA mask\n");
- pci_disable_device(pci);
return -ENXIO;
}
pci_set_master(pci);
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (chip == NULL) {
- pci_disable_device(pci);
- return -ENOMEM;
- }
-
chip->card = card;
chip->pci = pci;
chip->irq = -1;
@@ -646,11 +618,9 @@ static int snd_als300_create(struct snd_card *card,
spin_lock_init(&chip->reg_lock);
err = pci_request_regions(pci, "ALS300");
- if (err < 0) {
- kfree(chip);
- pci_disable_device(pci);
+ if (err < 0)
return err;
- }
+
chip->port = pci_resource_start(pci, 0);
if (chip->chip_type == DEVICE_ALS300_PLUS)
@@ -658,38 +628,29 @@ static int snd_als300_create(struct snd_card *card,
else
irq_handler = snd_als300_interrupt;
- if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
- KBUILD_MODNAME, chip)) {
+ if (devm_request_irq(&pci->dev, pci->irq, irq_handler, IRQF_SHARED,
+ KBUILD_MODNAME, chip)) {
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
- snd_als300_free(chip);
return -EBUSY;
}
chip->irq = pci->irq;
card->sync_irq = chip->irq;
+ card->private_free = snd_als300_free;
snd_als300_init(chip);
err = snd_als300_ac97(chip);
if (err < 0) {
dev_err(card->dev, "Could not create ac97\n");
- snd_als300_free(chip);
return err;
}
err = snd_als300_new_pcm(chip);
if (err < 0) {
dev_err(card->dev, "Could not create PCM\n");
- snd_als300_free(chip);
- return err;
- }
-
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
- if (err < 0) {
- snd_als300_free(chip);
return err;
}
- *rchip = chip;
return 0;
}
@@ -737,20 +698,16 @@ static int snd_als300_probe(struct pci_dev *pci,
return -ENOENT;
}
- err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
- 0, &card);
-
+ err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+ sizeof(*chip), &card);
if (err < 0)
return err;
chip_type = pci_id->driver_data;
- err = snd_als300_create(card, pci, chip_type, &chip);
- if (err < 0) {
- snd_card_free(card);
+ err = snd_als300_create(card, pci, chip_type);
+ if (err < 0)
return err;
- }
- card->private_data = chip;
strcpy(card->driver, "ALS300");
if (chip->chip_type == DEVICE_ALS300_PLUS)
@@ -764,10 +721,9 @@ static int snd_als300_probe(struct pci_dev *pci,
card->shortname, chip->port, chip->irq);
err = snd_card_register(card);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
+
pci_set_drvdata(pci, card);
dev++;
return 0;
@@ -777,7 +733,6 @@ static struct pci_driver als300_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_als300_ids,
.probe = snd_als300_probe,
- .remove = snd_als300_remove,
.driver = {
.pm = SND_ALS300_PM_OPS,
},
--
2.26.2
