This patch converts the resource management in PCI cs4281 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/cs4281.c | 112 ++++++++++----------------------------------- 1 file changed, 24 insertions(+), 88 deletions(-)
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c index e122a168c148..f338caf98354 100644 --- a/sound/pci/cs4281.c +++ b/sound/pci/cs4281.c @@ -1268,8 +1268,10 @@ static inline int snd_cs4281_create_gameport(struct cs4281 *chip) { return -ENOS static inline void snd_cs4281_free_gameport(struct cs4281 *chip) { } #endif /* IS_REACHABLE(CONFIG_GAMEPORT) */
-static int snd_cs4281_free(struct cs4281 *chip) +static void snd_cs4281_free(struct snd_card *card) { + struct cs4281 *chip = card->private_data; + snd_cs4281_free_gameport(chip);
/* Mask interrupts */ @@ -1278,49 +1280,20 @@ static int snd_cs4281_free(struct cs4281 *chip) snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); /* Sound System Power Management - Turn Everything OFF */ snd_cs4281_pokeBA0(chip, BA0_SSPM, 0); - /* PCI interface - D3 state */ - pci_set_power_state(chip->pci, PCI_D3hot); - - if (chip->irq >= 0) - free_irq(chip->irq, chip); - iounmap(chip->ba0); - iounmap(chip->ba1); - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - - kfree(chip); - return 0; -} - -static int snd_cs4281_dev_free(struct snd_device *device) -{ - struct cs4281 *chip = device->device_data; - return snd_cs4281_free(chip); }
static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */
static int snd_cs4281_create(struct snd_card *card, struct pci_dev *pci, - struct cs4281 **rchip, int dual_codec) { struct cs4281 *chip; - unsigned int tmp; int err; - static const struct snd_device_ops ops = { - .dev_free = snd_cs4281_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 == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } spin_lock_init(&chip->reg_lock); chip->card = card; chip->pci = pci; @@ -1332,46 +1305,29 @@ static int snd_cs4281_create(struct snd_card *card, } chip->dual_codec = dual_codec;
- err = pci_request_regions(pci, "CS4281"); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); + err = pcim_iomap_regions(pci, 0x03, "CS4281"); /* 2 BARs */ + if (err < 0) return err; - } chip->ba0_addr = pci_resource_start(pci, 0); chip->ba1_addr = pci_resource_start(pci, 1);
- chip->ba0 = pci_ioremap_bar(pci, 0); - chip->ba1 = pci_ioremap_bar(pci, 1); - if (!chip->ba0 || !chip->ba1) { - snd_cs4281_free(chip); - return -ENOMEM; - } + chip->ba0 = pcim_iomap_table(pci)[0]; + chip->ba1 = pcim_iomap_table(pci)[1]; - if (request_irq(pci->irq, snd_cs4281_interrupt, IRQF_SHARED, - KBUILD_MODNAME, chip)) { + if (devm_request_irq(&pci->dev, pci->irq, snd_cs4281_interrupt, + IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); - snd_cs4281_free(chip); return -ENOMEM; } chip->irq = pci->irq; card->sync_irq = chip->irq; + card->private_free = snd_cs4281_free;
- tmp = snd_cs4281_chip_init(chip); - if (tmp) { - snd_cs4281_free(chip); - return tmp; - } - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_cs4281_free(chip); + err = snd_cs4281_chip_init(chip); + if (err) return err; - }
snd_cs4281_proc_init(chip); - - *rchip = chip; return 0; }
@@ -1887,46 +1843,34 @@ static int snd_cs4281_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 = card->private_data;
- err = snd_cs4281_create(card, pci, &chip, dual_codec[dev]); - if (err < 0) { - snd_card_free(card); + err = snd_cs4281_create(card, pci, dual_codec[dev]); + if (err < 0) return err; - } - card->private_data = chip;
err = snd_cs4281_mixer(chip); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_cs4281_pcm(chip, 0); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_cs4281_midi(chip, 0); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } opl3->private_data = chip; opl3->command = snd_cs4281_opl3_command; snd_opl3_init(opl3); err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } snd_cs4281_create_gameport(chip); strcpy(card->driver, "CS4281"); strcpy(card->shortname, "Cirrus Logic CS4281"); @@ -1936,21 +1880,14 @@ static int snd_cs4281_probe(struct pci_dev *pci, 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; }
-static void snd_cs4281_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); -} - /* * Power Management */ @@ -2054,7 +1991,6 @@ static struct pci_driver cs4281_driver = { .name = KBUILD_MODNAME, .id_table = snd_cs4281_ids, .probe = snd_cs4281_probe, - .remove = snd_cs4281_remove, .driver = { .pm = CS4281_PM_OPS, },