ALSA: fm801: Allocate resources with device-managed APIs
This patch converts the resource management in PCI fm801 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. Also the superfluous ac97 private_free callbacks were dropped, too. This should give no user-visible functional changes. Link: https://lore.kernel.org/r/20210715075941.23332-20-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
a7b4cbfdc7
commit
47c4133953
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@ -1028,22 +1028,6 @@ FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE,
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FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
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};
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static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
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{
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struct fm801 *chip = bus->private_data;
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chip->ac97_bus = NULL;
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}
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static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
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{
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struct fm801 *chip = ac97->private_data;
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if (ac97->num == 0) {
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chip->ac97 = NULL;
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} else {
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chip->ac97_sec = NULL;
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}
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}
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static int snd_fm801_mixer(struct fm801 *chip)
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{
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struct snd_ac97_template ac97;
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@ -1057,11 +1041,9 @@ static int snd_fm801_mixer(struct fm801 *chip)
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err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
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if (err < 0)
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return err;
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chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
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memset(&ac97, 0, sizeof(ac97));
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ac97.private_data = chip;
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ac97.private_free = snd_fm801_mixer_free_ac97;
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err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
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if (err < 0)
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return err;
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@ -1177,55 +1159,35 @@ static void snd_fm801_chip_init(struct fm801 *chip)
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FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
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}
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static int snd_fm801_free(struct fm801 *chip)
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static void snd_fm801_free(struct snd_card *card)
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{
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struct fm801 *chip = card->private_data;
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unsigned short cmdw;
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if (chip->irq < 0)
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goto __end_hw;
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/* interrupt setup - mask everything */
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cmdw = fm801_readw(chip, IRQ_MASK);
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cmdw |= 0x00c3;
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fm801_writew(chip, IRQ_MASK, cmdw);
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devm_free_irq(chip->dev, chip->irq, chip);
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__end_hw:
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#ifdef CONFIG_SND_FM801_TEA575X_BOOL
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if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
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snd_tea575x_exit(&chip->tea);
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v4l2_device_unregister(&chip->v4l2_dev);
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}
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#endif
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return 0;
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}
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static int snd_fm801_dev_free(struct snd_device *device)
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{
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struct fm801 *chip = device->device_data;
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return snd_fm801_free(chip);
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}
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static int snd_fm801_create(struct snd_card *card,
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struct pci_dev *pci,
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int tea575x_tuner,
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int radio_nr,
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struct fm801 **rchip)
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int radio_nr)
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{
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struct fm801 *chip;
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struct fm801 *chip = card->private_data;
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int err;
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static const struct snd_device_ops ops = {
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.dev_free = snd_fm801_dev_free,
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};
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*rchip = NULL;
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err = pcim_enable_device(pci);
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if (err < 0)
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return err;
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chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
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if (chip == NULL)
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return -ENOMEM;
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spin_lock_init(&chip->reg_lock);
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chip->card = card;
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chip->dev = &pci->dev;
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@ -1253,7 +1215,6 @@ static int snd_fm801_create(struct snd_card *card,
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if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
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IRQF_SHARED, KBUILD_MODNAME, chip)) {
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dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
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snd_fm801_free(chip);
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return -EBUSY;
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}
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chip->irq = pci->irq;
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@ -1261,20 +1222,13 @@ static int snd_fm801_create(struct snd_card *card,
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pci_set_master(pci);
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}
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card->private_free = snd_fm801_free;
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snd_fm801_chip_init(chip);
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err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
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if (err < 0) {
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snd_fm801_free(chip);
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return err;
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}
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#ifdef CONFIG_SND_FM801_TEA575X_BOOL
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err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
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if (err < 0) {
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snd_fm801_free(chip);
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if (err < 0)
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return err;
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}
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chip->tea.v4l2_dev = &chip->v4l2_dev;
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chip->tea.radio_nr = radio_nr;
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chip->tea.private_data = chip;
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@ -1284,7 +1238,6 @@ static int snd_fm801_create(struct snd_card *card,
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(chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
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if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
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dev_err(card->dev, "TEA575x radio not found\n");
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snd_fm801_free(chip);
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return -ENODEV;
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}
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} else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
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@ -1312,8 +1265,6 @@ static int snd_fm801_create(struct snd_card *card,
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sizeof(chip->tea.card));
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}
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#endif
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*rchip = chip;
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return 0;
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}
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@ -1333,16 +1284,14 @@ static int snd_card_fm801_probe(struct pci_dev *pci,
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return -ENOENT;
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}
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err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
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0, &card);
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err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
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sizeof(*chip), &card);
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if (err < 0)
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return err;
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err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip);
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if (err < 0) {
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snd_card_free(card);
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chip = card->private_data;
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err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev]);
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if (err < 0)
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return err;
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}
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card->private_data = chip;
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strcpy(card->driver, "FM801");
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strcpy(card->shortname, "ForteMedia FM801-");
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@ -1354,53 +1303,36 @@ static int snd_card_fm801_probe(struct pci_dev *pci,
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goto __fm801_tuner_only;
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err = snd_fm801_pcm(chip, 0);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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err = snd_fm801_mixer(chip);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
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chip->port + FM801_MPU401_DATA,
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MPU401_INFO_INTEGRATED |
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MPU401_INFO_IRQ_HOOK,
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-1, &chip->rmidi);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
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chip->port + FM801_OPL3_BANK1,
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OPL3_HW_OPL3_FM801, 1, &opl3);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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__fm801_tuner_only:
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err = snd_card_register(card);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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pci_set_drvdata(pci, card);
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dev++;
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return 0;
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}
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static void snd_card_fm801_remove(struct pci_dev *pci)
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{
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snd_card_free(pci_get_drvdata(pci));
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}
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#ifdef CONFIG_PM_SLEEP
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static const unsigned char saved_regs[] = {
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FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
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@ -1468,7 +1400,6 @@ static struct pci_driver fm801_driver = {
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.name = KBUILD_MODNAME,
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.id_table = snd_fm801_ids,
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.probe = snd_card_fm801_probe,
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.remove = snd_card_fm801_remove,
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.driver = {
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.pm = SND_FM801_PM_OPS,
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},
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