From: Takashi Iwai Date: Thu, 15 Jul 2021 07:59:03 +0000 (+0200) Subject: ALSA: lx6464es: Allocate resources with device-managed APIs X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=6f16c19b115eb6564da7ea882af2afee4e26c213;p=uclinux-h8%2Flinux.git ALSA: lx6464es: Allocate resources with device-managed APIs 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. Link: https://lore.kernel.org/r/20210715075941.23332-42-tiwai@suse.de Signed-off-by: Takashi Iwai --- 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);