This patch converts the resource management in PCI es1938 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/es1938.c | 97 ++++++++++++---------------------------------- 1 file changed, 24 insertions(+), 73 deletions(-)
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c index 33b1eb347a27..00b976f42a3d 100644 --- a/sound/pci/es1938.c +++ b/sound/pci/es1938.c @@ -1521,8 +1521,10 @@ static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOS static inline void snd_es1938_free_gameport(struct es1938 *chip) { } #endif /* SUPPORT_JOYSTICK */
-static int snd_es1938_free(struct es1938 *chip) +static void snd_es1938_free(struct snd_card *card) { + struct es1938 *chip = card->private_data; + /* disable irqs */ outb(0x00, SLIO_REG(chip, IRQCONTROL)); if (chip->rmidi) @@ -1532,71 +1534,47 @@ static int snd_es1938_free(struct es1938 *chip)
if (chip->irq >= 0) free_irq(chip->irq, chip); - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - kfree(chip); - return 0; -} - -static int snd_es1938_dev_free(struct snd_device *device) -{ - struct es1938 *chip = device->device_data; - return snd_es1938_free(chip); }
static int snd_es1938_create(struct snd_card *card, - struct pci_dev *pci, - struct es1938 **rchip) + struct pci_dev *pci) { - struct es1938 *chip; + struct es1938 *chip = card->private_data; int err; - static const struct snd_device_ops ops = { - .dev_free = snd_es1938_dev_free, - }; - - *rchip = NULL;
/* enable PCI device */ - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err; /* check, if we can restrict PCI DMA transfers to 24 bits */ if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(24))) { dev_err(card->dev, "architecture does not support 24bit PCI busmaster DMA\n"); - pci_disable_device(pci); return -ENXIO; }
- chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } spin_lock_init(&chip->reg_lock); spin_lock_init(&chip->mixer_lock); chip->card = card; chip->pci = pci; chip->irq = -1; err = pci_request_regions(pci, "ESS Solo-1"); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); + if (err < 0) return err; - } chip->io_port = pci_resource_start(pci, 0); chip->sb_port = pci_resource_start(pci, 1); chip->vc_port = pci_resource_start(pci, 2); chip->mpu_port = pci_resource_start(pci, 3); chip->game_port = pci_resource_start(pci, 4); + /* still use non-managed irq handler as it's re-acquired at PM resume */ if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); - snd_es1938_free(chip); return -EBUSY; } chip->irq = pci->irq; card->sync_irq = chip->irq; + card->private_free = snd_es1938_free; dev_dbg(card->dev, "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n", chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port); @@ -1604,14 +1582,6 @@ static int snd_es1938_create(struct snd_card *card, chip->ddma_port = chip->vc_port + 0x00; /* fix from Thomas Sailer */
snd_es1938_chip_init(chip); - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_es1938_free(chip); - return err; - } - - *rchip = chip; return 0; }
@@ -1762,23 +1732,20 @@ static int snd_es1938_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; - for (idx = 0; idx < 5; idx++) { + chip = card->private_data; + + for (idx = 0; idx < 5; idx++) if (pci_resource_start(pci, idx) == 0 || - !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) { - snd_card_free(card); - return -ENODEV; - } - } - err = snd_es1938_create(card, pci, &chip); - if (err < 0) { - snd_card_free(card); + !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) + return -ENODEV; + + err = snd_es1938_create(card, pci); + if (err < 0) return err; - } - card->private_data = chip;
strcpy(card->driver, "ES1938"); strcpy(card->shortname, "ESS ES1938 (Solo-1)"); @@ -1788,15 +1755,11 @@ static int snd_es1938_probe(struct pci_dev *pci, chip->irq);
err = snd_es1938_new_pcm(chip, 0); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_es1938_mixer(chip); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } if (snd_opl3_create(card, SLSB_REG(chip, FMLOWADDR), SLSB_REG(chip, FMHIGHADDR), @@ -1805,15 +1768,11 @@ static int snd_es1938_probe(struct pci_dev *pci, SLSB_REG(chip, FMLOWADDR)); } else { err = snd_opl3_timer_new(opl3, 0, 1); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } } if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401, chip->mpu_port, @@ -1829,26 +1788,18 @@ static int snd_es1938_probe(struct pci_dev *pci, snd_es1938_create_gameport(chip);
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; }
-static void snd_es1938_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); -} - static struct pci_driver es1938_driver = { .name = KBUILD_MODNAME, .id_table = snd_es1938_ids, .probe = snd_es1938_probe, - .remove = snd_es1938_remove, .driver = { .pm = ES1938_PM_OPS, },