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@suse.de --- 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, },