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@xxxxxxx>
---
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,
},
--
2.26.2
