[PATCH 18/51] ALSA: fm801: Allocate resources with device-managed APIs
Takashi Iwai
tiwai at suse.de
Tue Jul 13 16:28:24 CEST 2021
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.
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
sound/pci/fm801.c | 103 ++++++++--------------------------------------
1 file changed, 17 insertions(+), 86 deletions(-)
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index ed9dae87145b..9c22ff19e56d 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1028,22 +1028,6 @@ FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE,
FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
};
-static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
-{
- struct fm801 *chip = bus->private_data;
- chip->ac97_bus = NULL;
-}
-
-static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
-{
- struct fm801 *chip = ac97->private_data;
- if (ac97->num == 0) {
- chip->ac97 = NULL;
- } else {
- chip->ac97_sec = NULL;
- }
-}
-
static int snd_fm801_mixer(struct fm801 *chip)
{
struct snd_ac97_template ac97;
@@ -1057,11 +1041,9 @@ static int snd_fm801_mixer(struct fm801 *chip)
err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
if (err < 0)
return err;
- chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
- ac97.private_free = snd_fm801_mixer_free_ac97;
err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
if (err < 0)
return err;
@@ -1177,55 +1159,35 @@ static void snd_fm801_chip_init(struct fm801 *chip)
FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
}
-static int snd_fm801_free(struct fm801 *chip)
+static void snd_fm801_free(struct snd_card *card)
{
+ struct fm801 *chip = card->private_data;
unsigned short cmdw;
- if (chip->irq < 0)
- goto __end_hw;
-
/* interrupt setup - mask everything */
cmdw = fm801_readw(chip, IRQ_MASK);
cmdw |= 0x00c3;
fm801_writew(chip, IRQ_MASK, cmdw);
- devm_free_irq(chip->dev, chip->irq, chip);
-
- __end_hw:
#ifdef CONFIG_SND_FM801_TEA575X_BOOL
if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
snd_tea575x_exit(&chip->tea);
v4l2_device_unregister(&chip->v4l2_dev);
}
#endif
- return 0;
-}
-
-static int snd_fm801_dev_free(struct snd_device *device)
-{
- struct fm801 *chip = device->device_data;
- return snd_fm801_free(chip);
}
static int snd_fm801_create(struct snd_card *card,
struct pci_dev *pci,
int tea575x_tuner,
- int radio_nr,
- struct fm801 **rchip)
+ int radio_nr)
{
- struct fm801 *chip;
+ struct fm801 *chip = card->private_data;
int err;
- static const struct snd_device_ops ops = {
- .dev_free = snd_fm801_dev_free,
- };
- *rchip = NULL;
err = pcim_enable_device(pci);
if (err < 0)
return err;
- chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
- if (chip == NULL)
- return -ENOMEM;
spin_lock_init(&chip->reg_lock);
chip->card = card;
chip->dev = &pci->dev;
@@ -1253,7 +1215,6 @@ static int snd_fm801_create(struct snd_card *card,
if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
IRQF_SHARED, KBUILD_MODNAME, chip)) {
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
- snd_fm801_free(chip);
return -EBUSY;
}
chip->irq = pci->irq;
@@ -1261,20 +1222,13 @@ static int snd_fm801_create(struct snd_card *card,
pci_set_master(pci);
}
+ card->private_free = snd_fm801_free;
snd_fm801_chip_init(chip);
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
- if (err < 0) {
- snd_fm801_free(chip);
- return err;
- }
-
#ifdef CONFIG_SND_FM801_TEA575X_BOOL
err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
- if (err < 0) {
- snd_fm801_free(chip);
+ if (err < 0)
return err;
- }
chip->tea.v4l2_dev = &chip->v4l2_dev;
chip->tea.radio_nr = radio_nr;
chip->tea.private_data = chip;
@@ -1284,7 +1238,6 @@ static int snd_fm801_create(struct snd_card *card,
(chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
dev_err(card->dev, "TEA575x radio not found\n");
- snd_fm801_free(chip);
return -ENODEV;
}
} else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
@@ -1312,8 +1265,6 @@ static int snd_fm801_create(struct snd_card *card,
sizeof(chip->tea.card));
}
#endif
-
- *rchip = chip;
return 0;
}
@@ -1333,16 +1284,14 @@ static int snd_card_fm801_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_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip);
- if (err < 0) {
- snd_card_free(card);
+ chip = card->private_data;
+ err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev]);
+ if (err < 0)
return err;
- }
- card->private_data = chip;
strcpy(card->driver, "FM801");
strcpy(card->shortname, "ForteMedia FM801-");
@@ -1354,53 +1303,36 @@ static int snd_card_fm801_probe(struct pci_dev *pci,
goto __fm801_tuner_only;
err = snd_fm801_pcm(chip, 0);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_fm801_mixer(chip);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
chip->port + FM801_MPU401_DATA,
MPU401_INFO_INTEGRATED |
MPU401_INFO_IRQ_HOOK,
-1, &chip->rmidi);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
chip->port + FM801_OPL3_BANK1,
OPL3_HW_OPL3_FM801, 1, &opl3);
- 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;
- }
__fm801_tuner_only:
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_card_fm801_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
-}
-
#ifdef CONFIG_PM_SLEEP
static const unsigned char saved_regs[] = {
FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
@@ -1468,7 +1400,6 @@ static struct pci_driver fm801_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_fm801_ids,
.probe = snd_card_fm801_probe,
- .remove = snd_card_fm801_remove,
.driver = {
.pm = SND_FM801_PM_OPS,
},
--
2.26.2
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