From 546c201a891e8439d11a13f5dd3e636ebd94b7d6 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 15 Jul 2021 09:59:06 +0200 Subject: [PATCH] ALSA: riptide: Allocate resources with device-managed APIs This patch converts the resource management in PCI riptide 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/20210715075941.23332-45-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/pci/riptide/riptide.c | 89 +++++++++++---------------------------------- 1 file changed, 22 insertions(+), 67 deletions(-) diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c index 709a1a2..5a987c6 100644 --- a/sound/pci/riptide/riptide.c +++ b/sound/pci/riptide/riptide.c @@ -1798,13 +1798,11 @@ static int snd_riptide_initialize(struct snd_riptide *chip) return err; } -static int snd_riptide_free(struct snd_riptide *chip) +static void snd_riptide_free(struct snd_card *card) { + struct snd_riptide *chip = card->private_data; struct cmdif *cif; - if (!chip) - return 0; - cif = chip->cif; if (cif) { SET_GRESET(cif->hwport); @@ -1812,39 +1810,19 @@ static int snd_riptide_free(struct snd_riptide *chip) UNSET_GRESET(cif->hwport); kfree(chip->cif); } - if (chip->irq >= 0) - free_irq(chip->irq, chip); release_firmware(chip->fw_entry); - release_and_free_resource(chip->res_port); - kfree(chip); - return 0; -} - -static int snd_riptide_dev_free(struct snd_device *device) -{ - struct snd_riptide *chip = device->device_data; - - return snd_riptide_free(chip); } static int -snd_riptide_create(struct snd_card *card, struct pci_dev *pci, - struct snd_riptide **rchip) +snd_riptide_create(struct snd_card *card, struct pci_dev *pci) { - struct snd_riptide *chip; + struct snd_riptide *chip = card->private_data; struct riptideport *hwport; int err; - static const struct snd_device_ops ops = { - .dev_free = snd_riptide_dev_free, - }; - *rchip = NULL; - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err; - chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL); - if (!chip) - return -ENOMEM; spin_lock_init(&chip->lock); chip->card = card; @@ -1855,24 +1833,20 @@ snd_riptide_create(struct snd_card *card, struct pci_dev *pci, chip->received_irqs = 0; chip->handled_irqs = 0; chip->cif = NULL; + card->private_free = snd_riptide_free; - chip->res_port = request_region(chip->port, 64, "RIPTIDE"); - if (!chip->res_port) { - snd_printk(KERN_ERR - "Riptide: unable to grab region 0x%lx-0x%lx\n", - chip->port, chip->port + 64 - 1); - snd_riptide_free(chip); - return -EBUSY; - } + err = pci_request_regions(pci, "RIPTIDE"); + if (err < 0) + return err; hwport = (struct riptideport *)chip->port; UNSET_AIE(hwport); - if (request_threaded_irq(pci->irq, snd_riptide_interrupt, - riptide_handleirq, IRQF_SHARED, - KBUILD_MODNAME, chip)) { + if (devm_request_threaded_irq(&pci->dev, pci->irq, + snd_riptide_interrupt, + riptide_handleirq, IRQF_SHARED, + KBUILD_MODNAME, chip)) { snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n", pci->irq); - snd_riptide_free(chip); return -EBUSY; } chip->irq = pci->irq; @@ -1880,18 +1854,9 @@ snd_riptide_create(struct snd_card *card, struct pci_dev *pci, chip->device_id = pci->device; pci_set_master(pci); err = snd_riptide_initialize(chip); - if (err < 0) { - snd_riptide_free(chip); - return err; - } - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_riptide_free(chip); + if (err < 0) return err; - } - *rchip = chip; return 0; } @@ -2073,20 +2038,20 @@ snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 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; - err = snd_riptide_create(card, pci, &chip); + chip = card->private_data; + err = snd_riptide_create(card, pci); if (err < 0) - goto error; - card->private_data = chip; + return err; err = snd_riptide_pcm(chip, 0); if (err < 0) - goto error; + return err; err = snd_riptide_mixer(chip); if (err < 0) - goto error; + return err; val = LEGACY_ENABLE_ALL; if (opl3_port[dev]) @@ -2153,26 +2118,16 @@ snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) snd_riptide_proc_init(chip); 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_card_riptide_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); } static struct pci_driver driver = { .name = KBUILD_MODNAME, .id_table = snd_riptide_ids, .probe = snd_card_riptide_probe, - .remove = snd_card_riptide_remove, .driver = { .pm = RIPTIDE_PM_OPS, }, -- 2.7.4