This patch converts the resource management in PCI bt87x 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/bt87x.c | 97 ++++++++++++----------------------------------- 1 file changed, 24 insertions(+), 73 deletions(-)
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c index 39bcfb81e81c..4ca58be3a0c9 100644 --- a/sound/pci/bt87x.c +++ b/sound/pci/bt87x.c @@ -656,23 +656,11 @@ static const struct snd_kcontrol_new snd_bt87x_capture_source = { .put = snd_bt87x_capture_source_put, };
-static int snd_bt87x_free(struct snd_bt87x *chip) -{ - if (chip->mmio) - snd_bt87x_stop(chip); - if (chip->irq >= 0) - free_irq(chip->irq, chip); - iounmap(chip->mmio); - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - kfree(chip); - return 0; -} - -static int snd_bt87x_dev_free(struct snd_device *device) +static void snd_bt87x_free(struct snd_card *card) { - struct snd_bt87x *chip = device->device_data; - return snd_bt87x_free(chip); + struct snd_bt87x *chip = card->private_data; + + snd_bt87x_stop(chip); }
static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) @@ -694,43 +682,24 @@ static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) }
static int snd_bt87x_create(struct snd_card *card, - struct pci_dev *pci, - struct snd_bt87x **rchip) + struct pci_dev *pci) { - struct snd_bt87x *chip; + struct snd_bt87x *chip = card->private_data; int err; - static const struct snd_device_ops ops = { - .dev_free = snd_bt87x_dev_free - }; - - *rchip = NULL;
- err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (!chip) { - pci_disable_device(pci); - return -ENOMEM; - } chip->card = card; chip->pci = pci; chip->irq = -1; spin_lock_init(&chip->reg_lock);
- err = pci_request_regions(pci, "Bt87x audio"); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); + err = pcim_iomap_regions(pci, 1 << 0, "Bt87x audio"); + if (err < 0) return err; - } - chip->mmio = pci_ioremap_bar(pci, 0); - if (!chip->mmio) { - dev_err(card->dev, "cannot remap io memory\n"); - err = -ENOMEM; - goto fail; - } + chip->mmio = pcim_iomap_table(pci)[0];
chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); @@ -739,26 +708,18 @@ static int snd_bt87x_create(struct snd_card *card, snd_bt87x_writel(chip, REG_INT_MASK, 0); snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
- err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, - KBUILD_MODNAME, chip); + err = devm_request_irq(&pci->dev, pci->irq, snd_bt87x_interrupt, + IRQF_SHARED, KBUILD_MODNAME, chip); if (err < 0) { dev_err(card->dev, "cannot grab irq %d\n", pci->irq); - goto fail; + return err; } chip->irq = pci->irq; card->sync_irq = chip->irq; + card->private_free = snd_bt87x_free; pci_set_master(pci);
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) - goto fail; - - *rchip = chip; return 0; - -fail: - snd_bt87x_free(chip); - return err; }
#define BT_DEVICE(chip, subvend, subdev, id) \ @@ -868,14 +829,14 @@ static int snd_bt87x_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;
- err = snd_bt87x_create(card, pci, &chip); + err = snd_bt87x_create(card, pci); if (err < 0) - goto _error; + return err;
memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
@@ -887,24 +848,24 @@ static int snd_bt87x_probe(struct pci_dev *pci,
err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); if (err < 0) - goto _error; + return err; } if (!chip->board.no_analog) { err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); if (err < 0) - goto _error; + return err; err = snd_ctl_add(card, snd_ctl_new1( &snd_bt87x_capture_volume, chip)); if (err < 0) - goto _error; + return err; err = snd_ctl_add(card, snd_ctl_new1( &snd_bt87x_capture_boost, chip)); if (err < 0) - goto _error; + return err; err = snd_ctl_add(card, snd_ctl_new1( &snd_bt87x_capture_source, chip)); if (err < 0) - goto _error; + return err; } dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " "(rate %d Hz)\n", dev, boardid, @@ -920,20 +881,11 @@ static int snd_bt87x_probe(struct pci_dev *pci,
err = snd_card_register(card); if (err < 0) - goto _error; + return err;
pci_set_drvdata(pci, card); ++dev; return 0; - -_error: - snd_card_free(card); - return err; -} - -static void snd_bt87x_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); }
/* default entries for all Bt87x cards - it's not exported */ @@ -948,7 +900,6 @@ static struct pci_driver driver = { .name = KBUILD_MODNAME, .id_table = snd_bt87x_ids, .probe = snd_bt87x_probe, - .remove = snd_bt87x_remove, };
static int __init alsa_card_bt87x_init(void)