This patch converts the resource management in PCI bt87x 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/bt87x.c | 98 ++++++++++++-----------------------------------
1 file changed, 25 insertions(+), 73 deletions(-)
diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index 39bcfb81e81c..d23f93163841 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -656,23 +656,11 @@ static const struct snd_kcontrol_new snd_bt87x_capture_source = {
.put = snd_bt87x_capture_source_put,
};
-static int snd_bt87x_free(struct snd_bt87x *chip)
-{
- if (chip->mmio)
- snd_bt87x_stop(chip);
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
- iounmap(chip->mmio);
- pci_release_regions(chip->pci);
- pci_disable_device(chip->pci);
- kfree(chip);
- return 0;
-}
-
-static int snd_bt87x_dev_free(struct snd_device *device)
+static void snd_bt87x_free(struct snd_card *card)
{
- struct snd_bt87x *chip = device->device_data;
- return snd_bt87x_free(chip);
+ struct snd_bt87x *chip = card->private_data;
+
+ snd_bt87x_stop(chip);
}
static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
@@ -694,43 +682,24 @@ static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
}
static int snd_bt87x_create(struct snd_card *card,
- struct pci_dev *pci,
- struct snd_bt87x **rchip)
+ struct pci_dev *pci)
{
- struct snd_bt87x *chip;
+ struct snd_bt87x *chip = card->private_data;
int err;
- static const struct snd_device_ops ops = {
- .dev_free = snd_bt87x_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) {
- pci_disable_device(pci);
- return -ENOMEM;
- }
chip->card = card;
chip->pci = pci;
chip->irq = -1;
spin_lock_init(&chip->reg_lock);
- err = pci_request_regions(pci, "Bt87x audio");
- if (err < 0) {
- kfree(chip);
- pci_disable_device(pci);
+ err = pcim_iomap_regions(pci, 1 << 0, "Bt87x audio");
+ if (err < 0)
return err;
- }
- chip->mmio = pci_ioremap_bar(pci, 0);
- if (!chip->mmio) {
- dev_err(card->dev, "cannot remap io memory\n");
- err = -ENOMEM;
- goto fail;
- }
+ chip->mmio = pcim_iomap_table(pci)[0];
chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
@@ -739,26 +708,18 @@ static int snd_bt87x_create(struct snd_card *card,
snd_bt87x_writel(chip, REG_INT_MASK, 0);
snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
- err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
- KBUILD_MODNAME, chip);
+ err = devm_request_irq(&pci->dev, pci->irq, snd_bt87x_interrupt,
+ IRQF_SHARED, KBUILD_MODNAME, chip);
if (err < 0) {
dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
- goto fail;
+ return err;
}
chip->irq = pci->irq;
card->sync_irq = chip->irq;
+ card->private_free = snd_bt87x_free;
pci_set_master(pci);
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
- if (err < 0)
- goto fail;
-
- *rchip = chip;
return 0;
-
-fail:
- snd_bt87x_free(chip);
- return err;
}
#define BT_DEVICE(chip, subvend, subdev, id) \
@@ -868,14 +829,15 @@ static int snd_bt87x_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_bt87x_create(card, pci, &chip);
+ err = snd_bt87x_create(card, pci);
if (err < 0)
- goto _error;
+ return err;
memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
@@ -887,24 +849,24 @@ static int snd_bt87x_probe(struct pci_dev *pci,
err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
if (err < 0)
- goto _error;
+ return err;
}
if (!chip->board.no_analog) {
err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
if (err < 0)
- goto _error;
+ return err;
err = snd_ctl_add(card, snd_ctl_new1(
&snd_bt87x_capture_volume, chip));
if (err < 0)
- goto _error;
+ return err;
err = snd_ctl_add(card, snd_ctl_new1(
&snd_bt87x_capture_boost, chip));
if (err < 0)
- goto _error;
+ return err;
err = snd_ctl_add(card, snd_ctl_new1(
&snd_bt87x_capture_source, chip));
if (err < 0)
- goto _error;
+ return err;
}
dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
"(rate %d Hz)\n", dev, boardid,
@@ -920,20 +882,11 @@ static int snd_bt87x_probe(struct pci_dev *pci,
err = snd_card_register(card);
if (err < 0)
- goto _error;
+ return err;
pci_set_drvdata(pci, card);
++dev;
return 0;
-
-_error:
- snd_card_free(card);
- return err;
-}
-
-static void snd_bt87x_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
}
/* default entries for all Bt87x cards - it's not exported */
@@ -948,7 +901,6 @@ static struct pci_driver driver = {
.name = KBUILD_MODNAME,
.id_table = snd_bt87x_ids,
.probe = snd_bt87x_probe,
- .remove = snd_bt87x_remove,
};
static int __init alsa_card_bt87x_init(void)
--
2.26.2
