This patch converts the resource management in PCI au88x0 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/au88x0/au88x0.c | 134 +++++++++----------------------------- 1 file changed, 29 insertions(+), 105 deletions(-)
diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c index 1f7fee470266..342ef2a6655e 100644 --- a/sound/pci/au88x0/au88x0.c +++ b/sound/pci/au88x0/au88x0.c @@ -123,56 +123,35 @@ static void snd_vortex_workaround(struct pci_dev *vortex, int fix)
// component-destructor // (see "Management of Cards and Components") -static int snd_vortex_dev_free(struct snd_device *device) +static void snd_vortex_free(struct snd_card *card) { - vortex_t *vortex = device->device_data; + vortex_t *vortex = card->private_data;
vortex_gameport_unregister(vortex); vortex_core_shutdown(vortex); - // Take down PCI interface. - free_irq(vortex->irq, vortex); - iounmap(vortex->mmio); - pci_release_regions(vortex->pci_dev); - pci_disable_device(vortex->pci_dev); - kfree(vortex); - - return 0; }
// chip-specific constructor // (see "Management of Cards and Components") static int -snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip) +snd_vortex_create(struct snd_card *card, struct pci_dev *pci) { - vortex_t *chip; + vortex_t *chip = card->private_data; int err; - static const struct snd_device_ops ops = { - .dev_free = snd_vortex_dev_free, - }; - - *rchip = NULL;
// check PCI availability (DMA). - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err; if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) { dev_err(card->dev, "error to set DMA mask\n"); - pci_disable_device(pci); return -ENXIO; }
- chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } - chip->card = card;
// initialize the stuff chip->pci_dev = pci; - chip->io = pci_resource_start(pci, 0); chip->vendor = pci->vendor; chip->device = pci->device; chip->card = card; @@ -181,16 +160,12 @@ snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip) // (1) PCI resource allocation // Get MMIO area // - err = pci_request_regions(pci, CARD_NAME_SHORT); + err = pcim_iomap_regions(pci, 1 << 0, CARD_NAME_SHORT); if (err) - goto regions_out; + return err;
- chip->mmio = pci_ioremap_bar(pci, 0); - if (!chip->mmio) { - dev_err(card->dev, "MMIO area remap failed.\n"); - err = -ENOMEM; - goto ioremap_out; - } + chip->io = pci_resource_start(pci, 0); + chip->mmio = pcim_iomap_table(pci)[0];
/* Init audio core. * This must be done before we do request_irq otherwise we can get spurious @@ -198,44 +173,22 @@ snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip) err = vortex_core_init(chip); if (err) { dev_err(card->dev, "hw core init failed\n"); - goto core_out; + return err; }
- err = request_irq(pci->irq, vortex_interrupt, - IRQF_SHARED, KBUILD_MODNAME, chip); + err = devm_request_irq(&pci->dev, pci->irq, vortex_interrupt, + IRQF_SHARED, KBUILD_MODNAME, chip); if (err) { dev_err(card->dev, "cannot grab irq\n"); - goto irq_out; + return err; } chip->irq = pci->irq; card->sync_irq = chip->irq; + card->private_free = snd_vortex_free;
pci_set_master(pci); // End of PCI setup. - - // Register alsa root device. - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) - goto alloc_out; - - *rchip = chip; - return 0; - - alloc_out: - free_irq(chip->irq, chip); - irq_out: - vortex_core_shutdown(chip); - core_out: - iounmap(chip->mmio); - ioremap_out: - pci_release_regions(chip->pci_dev); - regions_out: - pci_disable_device(chip->pci_dev); - //FIXME: this not the right place to unregister the gameport - vortex_gameport_unregister(chip); - kfree(chip); - return err; }
// constructor -- see "Constructor" sub-section @@ -255,17 +208,16 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) return -ENOENT; } // (2) - 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;
// (3) - err = snd_vortex_create(card, pci, &chip); - if (err < 0) { - snd_card_free(card); + err = snd_vortex_create(card, pci); + if (err < 0) return err; - } snd_vortex_workaround(pci, pcifix[dev]);
// Card details needed in snd_vortex_midi @@ -276,50 +228,37 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
// (4) Alloc components. err = snd_vortex_mixer(chip); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } // ADB pcm. err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_PCM); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } #ifndef CHIP_AU8820 // ADB SPDIF err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } // A3D err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } #endif /* // ADB I2S if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) { - snd_card_free(card); return err; } */ #ifndef CHIP_AU8810 // WT pcm. err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } #endif err = snd_vortex_midi(chip); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - }
vortex_gameport_register(chip);
@@ -342,15 +281,11 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
// (5) err = pci_read_config_word(pci, PCI_DEVICE_ID, &chip->device); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = pci_read_config_word(pci, PCI_VENDOR_ID, &chip->vendor); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } chip->rev = pci->revision; #ifdef CHIP_AU8830 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) { @@ -359,18 +294,14 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) chip->rev); dev_alert(card->dev, "Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n"); - snd_card_free(card); - err = -ENODEV; - return err; + return -ENODEV; } #endif
// (6) err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } // (7) pci_set_drvdata(pci, card); dev++; @@ -379,18 +310,11 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) return 0; }
-// destructor -- see "Destructor" sub-section -static void snd_vortex_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); -} - // pci_driver definition static struct pci_driver vortex_driver = { .name = KBUILD_MODNAME, .id_table = snd_vortex_ids, .probe = snd_vortex_probe, - .remove = snd_vortex_remove, };
module_pci_driver(vortex_driver);