This patch converts the resource management in PCI nm256 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/nm256/nm256.c | 130 ++++++++++------------------------------
1 file changed, 30 insertions(+), 100 deletions(-)
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 12d02d7d3b51..a54b9b26a0c2 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -193,11 +193,9 @@ struct nm256 {
struct snd_card *card;
void __iomem *cport; /* control port */
- struct resource *res_cport; /* its resource */
unsigned long cport_addr; /* physical address */
void __iomem *buffer; /* buffer */
- struct resource *res_buffer; /* its resource */
unsigned long buffer_addr; /* buffer phyiscal address */
u32 buffer_start; /* start offset from pci resource 0 */
@@ -1313,8 +1311,9 @@ snd_nm256_mixer(struct nm256 *chip)
.read = snd_nm256_ac97_read,
};
- chip->ac97_regs = kcalloc(ARRAY_SIZE(nm256_ac97_init_val),
- sizeof(short), GFP_KERNEL);
+ chip->ac97_regs = devm_kcalloc(chip->card->dev,
+ ARRAY_SIZE(nm256_ac97_init_val),
+ sizeof(short), GFP_KERNEL);
if (! chip->ac97_regs)
return -ENOMEM;
@@ -1437,56 +1436,27 @@ static SIMPLE_DEV_PM_OPS(nm256_pm, nm256_suspend, nm256_resume);
#define NM256_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
-static int snd_nm256_free(struct nm256 *chip)
+static void snd_nm256_free(struct snd_card *card)
{
+ struct nm256 *chip = card->private_data;
+
if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
snd_nm256_playback_stop(chip);
if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
snd_nm256_capture_stop(chip);
-
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
-
- iounmap(chip->cport);
- iounmap(chip->buffer);
- release_and_free_resource(chip->res_cport);
- release_and_free_resource(chip->res_buffer);
-
- pci_disable_device(chip->pci);
- kfree(chip->ac97_regs);
- kfree(chip);
- return 0;
-}
-
-static int snd_nm256_dev_free(struct snd_device *device)
-{
- struct nm256 *chip = device->device_data;
- return snd_nm256_free(chip);
}
static int
-snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
- struct nm256 **chip_ret)
+snd_nm256_create(struct snd_card *card, struct pci_dev *pci)
{
- struct nm256 *chip;
+ struct nm256 *chip = card->private_data;
int err, pval;
- static const struct snd_device_ops ops = {
- .dev_free = snd_nm256_dev_free,
- };
u32 addr;
- *chip_ret = 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;
- }
-
chip->card = card;
chip->pci = pci;
chip->use_cache = use_cache;
@@ -1508,22 +1478,16 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
chip->buffer_addr = pci_resource_start(pci, 0);
chip->cport_addr = pci_resource_start(pci, 1);
+ if (pci_request_regions(pci, card->driver))
+ return err;
+
/* Init the memory port info. */
/* remap control port (#2) */
- chip->res_cport = request_mem_region(chip->cport_addr, NM_PORT2_SIZE,
- card->driver);
- if (chip->res_cport == NULL) {
- dev_err(card->dev, "memory region 0x%lx (size 0x%x) busy\n",
- chip->cport_addr, NM_PORT2_SIZE);
- err = -EBUSY;
- goto __error;
- }
- chip->cport = ioremap(chip->cport_addr, NM_PORT2_SIZE);
- if (chip->cport == NULL) {
+ chip->cport = devm_ioremap(&pci->dev, chip->cport_addr, NM_PORT2_SIZE);
+ if (!chip->cport) {
dev_err(card->dev, "unable to map control port %lx\n",
chip->cport_addr);
- err = -ENOMEM;
- goto __error;
+ return -ENOMEM;
}
if (!strcmp(card->driver, "NM256AV")) {
@@ -1539,8 +1503,7 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
" force_ac97=1\n");
dev_err(card->dev,
"or try sb16, opl3sa2, or cs423x drivers instead.\n");
- err = -ENXIO;
- goto __error;
+ return -ENXIO;
}
}
chip->buffer_end = 2560 * 1024;
@@ -1572,7 +1535,7 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
/* get buffer end pointer from signature */
err = snd_nm256_peek_for_sig(chip);
if (err < 0)
- goto __error;
+ return err;
}
chip->buffer_start = chip->buffer_end - chip->buffer_size;
@@ -1581,21 +1544,12 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
dev_info(card->dev, "Mapping port 1 from 0x%x - 0x%x\n",
chip->buffer_start, chip->buffer_end);
- chip->res_buffer = request_mem_region(chip->buffer_addr,
- chip->buffer_size,
- card->driver);
- if (chip->res_buffer == NULL) {
- dev_err(card->dev, "buffer 0x%lx (size 0x%x) busy\n",
- chip->buffer_addr, chip->buffer_size);
- err = -EBUSY;
- goto __error;
- }
- chip->buffer = ioremap(chip->buffer_addr, chip->buffer_size);
- if (chip->buffer == NULL) {
- err = -ENOMEM;
+ chip->buffer = devm_ioremap(&pci->dev, chip->buffer_addr,
+ chip->buffer_size);
+ if (!chip->buffer) {
dev_err(card->dev, "unable to map ring buffer at %lx\n",
chip->buffer_addr);
- goto __error;
+ return -ENOMEM;
}
/* set offsets */
@@ -1618,19 +1572,10 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
chip->coeffs_current = 0;
snd_nm256_init_chip(chip);
+ card->private_free = snd_nm256_free;
// pci_set_master(pci); /* needed? */
-
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
- if (err < 0)
- goto __error;
-
- *chip_ret = chip;
return 0;
-
-__error:
- snd_nm256_free(chip);
- return err;
}
@@ -1673,9 +1618,11 @@ static int snd_nm256_probe(struct pci_dev *pci,
}
}
- err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
+ err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
+ sizeof(*chip), &card);
if (err < 0)
return err;
+ chip = card->private_data;
switch (pci->device) {
case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO:
@@ -1689,7 +1636,6 @@ static int snd_nm256_probe(struct pci_dev *pci,
break;
default:
dev_err(&pci->dev, "invalid device id 0x%x\n", pci->device);
- snd_card_free(card);
return -EINVAL;
}
@@ -1704,12 +1650,9 @@ static int snd_nm256_probe(struct pci_dev *pci,
capture_bufsize = 4;
if (capture_bufsize > 128)
capture_bufsize = 128;
- err = snd_nm256_create(card, pci, &chip);
- if (err < 0) {
- snd_card_free(card);
+ err = snd_nm256_create(card, pci);
+ if (err < 0)
return err;
- }
- card->private_data = chip;
if (reset_workaround) {
dev_dbg(&pci->dev, "reset_workaround activated\n");
@@ -1722,15 +1665,11 @@ static int snd_nm256_probe(struct pci_dev *pci,
}
err = snd_nm256_pcm(chip, 0);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_nm256_mixer(chip);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
sprintf(card->shortname, "NeoMagic %s", card->driver);
sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d",
@@ -1738,26 +1677,17 @@ static int snd_nm256_probe(struct pci_dev *pci,
chip->buffer_addr, chip->cport_addr, chip->irq);
err = snd_card_register(card);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
pci_set_drvdata(pci, card);
return 0;
}
-static void snd_nm256_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
-}
-
-
static struct pci_driver nm256_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_nm256_ids,
.probe = snd_nm256_probe,
- .remove = snd_nm256_remove,
.driver = {
.pm = NM256_PM_OPS,
},
--
2.26.2
