This patch converts the resource management in PCI lx6464es 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/lx6464es/lx6464es.c | 112 ++++++++--------------------------
1 file changed, 24 insertions(+), 88 deletions(-)
diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index 1be97c38bc71..168a1084f730 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -524,29 +524,11 @@ static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
return lx_pcm_trigger_dispatch(chip, stream, cmd);
}
-static int snd_lx6464es_free(struct lx6464es *chip)
+static void snd_lx6464es_free(struct snd_card *card)
{
- dev_dbg(chip->card->dev, "->snd_lx6464es_free\n");
+ struct lx6464es *chip = card->private_data;
lx_irq_disable(chip);
-
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
-
- iounmap(chip->port_dsp_bar);
- ioport_unmap(chip->port_plx_remapped);
-
- pci_release_regions(chip->pci);
- pci_disable_device(chip->pci);
-
- kfree(chip);
-
- return 0;
-}
-
-static int snd_lx6464es_dev_free(struct snd_device *device)
-{
- return snd_lx6464es_free(device->device_data);
}
/* reset the dsp during initialization */
@@ -930,22 +912,15 @@ static int lx_proc_create(struct snd_card *card, struct lx6464es *chip)
static int snd_lx6464es_create(struct snd_card *card,
- struct pci_dev *pci,
- struct lx6464es **rchip)
+ struct pci_dev *pci)
{
- struct lx6464es *chip;
+ struct lx6464es *chip = card->private_data;
int err;
- static const struct snd_device_ops ops = {
- .dev_free = snd_lx6464es_dev_free,
- };
-
dev_dbg(card->dev, "->snd_lx6464es_create\n");
- *rchip = NULL;
-
/* enable PCI device */
- err = pci_enable_device(pci);
+ err = pcim_enable_device(pci);
if (err < 0)
return err;
@@ -956,16 +931,9 @@ static int snd_lx6464es_create(struct snd_card *card,
if (err < 0) {
dev_err(card->dev,
"architecture does not support 32bit PCI busmaster DMA\n");
- pci_disable_device(pci);
return -ENXIO;
}
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (chip == NULL) {
- err = -ENOMEM;
- goto alloc_failed;
- }
-
chip->card = card;
chip->pci = pci;
chip->irq = -1;
@@ -978,33 +946,30 @@ static int snd_lx6464es_create(struct snd_card *card,
/* request resources */
err = pci_request_regions(pci, card_name);
if (err < 0)
- goto request_regions_failed;
+ return err;
/* plx port */
chip->port_plx = pci_resource_start(pci, 1);
- chip->port_plx_remapped = ioport_map(chip->port_plx,
- pci_resource_len(pci, 1));
+ chip->port_plx_remapped = devm_ioport_map(&pci->dev, chip->port_plx,
+ pci_resource_len(pci, 1));
+ if (!chip->port_plx_remapped)
+ return -ENOMEM;
/* dsp port */
- chip->port_dsp_bar = pci_ioremap_bar(pci, 2);
- if (!chip->port_dsp_bar) {
- dev_err(card->dev, "cannot remap PCI memory region\n");
- err = -ENOMEM;
- goto remap_pci_failed;
- }
+ chip->port_dsp_bar = pcim_iomap(pci, 2, 0);
+ if (!chip->port_dsp_bar)
+ return -ENOMEM;
- err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq,
- IRQF_SHARED, KBUILD_MODNAME, chip);
+ err = devm_request_threaded_irq(&pci->dev, pci->irq, lx_interrupt,
+ lx_threaded_irq, IRQF_SHARED,
+ KBUILD_MODNAME, chip);
if (err) {
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
- goto request_irq_failed;
+ return err;
}
chip->irq = pci->irq;
card->sync_irq = chip->irq;
-
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
- if (err < 0)
- goto device_new_failed;
+ card->private_free = snd_lx6464es_free;
err = lx_init_dsp(chip);
if (err < 0) {
@@ -1025,25 +990,7 @@ static int snd_lx6464es_create(struct snd_card *card,
if (err < 0)
return err;
- *rchip = chip;
return 0;
-
-device_new_failed:
- free_irq(pci->irq, chip);
-
-request_irq_failed:
- iounmap(chip->port_dsp_bar);
-
-remap_pci_failed:
- pci_release_regions(pci);
-
-request_regions_failed:
- kfree(chip);
-
-alloc_failed:
- pci_disable_device(pci);
-
- return err;
}
static int snd_lx6464es_probe(struct pci_dev *pci,
@@ -1063,15 +1010,16 @@ static int snd_lx6464es_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_lx6464es_create(card, pci, &chip);
+ err = snd_lx6464es_create(card, pci);
if (err < 0) {
dev_err(card->dev, "error during snd_lx6464es_create\n");
- goto out_free;
+ return err;
}
strcpy(card->driver, "LX6464ES");
@@ -1088,30 +1036,18 @@ static int snd_lx6464es_probe(struct pci_dev *pci,
err = snd_card_register(card);
if (err < 0)
- goto out_free;
+ return err;
dev_dbg(chip->card->dev, "initialization successful\n");
pci_set_drvdata(pci, card);
dev++;
return 0;
-
-out_free:
- snd_card_free(card);
- return err;
-
}
-static void snd_lx6464es_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
-}
-
-
static struct pci_driver lx6464es_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_lx6464es_ids,
.probe = snd_lx6464es_probe,
- .remove = snd_lx6464es_remove,
};
module_pci_driver(lx6464es_driver);
--
2.26.2
