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@suse.de --- 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, },