This patch converts the resource management in PCI cmipci 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/cmipci.c | 104 ++++++++++++--------------------------------- 1 file changed, 28 insertions(+), 76 deletions(-)
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c index f44f118aacad..ea20236f35db 100644 --- a/sound/pci/cmipci.c +++ b/sound/pci/cmipci.c @@ -2852,13 +2852,15 @@ static int snd_cmipci_create_gameport(struct cmipci *cm, int dev) if (joystick_port[dev] == 1) { /* auto-detect */ for (i = 0; ports[i]; i++) { io_port = ports[i]; - r = request_region(io_port, 1, "CMIPCI gameport"); + r = devm_request_region(&cm->pci->dev, io_port, 1, + "CMIPCI gameport"); if (r) break; } } else { io_port = joystick_port[dev]; - r = request_region(io_port, 1, "CMIPCI gameport"); + r = devm_request_region(&cm->pci->dev, io_port, 1, + "CMIPCI gameport"); }
if (!r) { @@ -2869,14 +2871,12 @@ static int snd_cmipci_create_gameport(struct cmipci *cm, int dev) cm->gameport = gp = gameport_allocate_port(); if (!gp) { dev_err(cm->card->dev, "cannot allocate memory for gameport\n"); - release_and_free_resource(r); return -ENOMEM; } gameport_set_name(gp, "C-Media Gameport"); gameport_set_phys(gp, "pci%s/gameport0", pci_name(cm->pci)); gameport_set_dev_parent(gp, &cm->pci->dev); gp->io = io_port; - gameport_set_port_data(gp, r);
snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
@@ -2888,13 +2888,10 @@ static int snd_cmipci_create_gameport(struct cmipci *cm, int dev) static void snd_cmipci_free_gameport(struct cmipci *cm) { if (cm->gameport) { - struct resource *r = gameport_get_port_data(cm->gameport); - gameport_unregister_port(cm->gameport); cm->gameport = NULL;
snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN); - release_and_free_resource(r); } } #else @@ -2902,34 +2899,22 @@ static inline int snd_cmipci_create_gameport(struct cmipci *cm, int dev) { retur static inline void snd_cmipci_free_gameport(struct cmipci *cm) { } #endif
-static int snd_cmipci_free(struct cmipci *cm) +static void snd_cmipci_free(struct snd_card *card) { - if (cm->irq >= 0) { - snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN); - snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); - snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0); /* disable ints */ - snd_cmipci_ch_reset(cm, CM_CH_PLAY); - snd_cmipci_ch_reset(cm, CM_CH_CAPT); - snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0); /* disable channels */ - snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0); + struct cmipci *cm = card->private_data;
- /* reset mixer */ - snd_cmipci_mixer_write(cm, 0, 0); + snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN); + snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); + snd_cmipci_write(cm, CM_REG_INT_HLDCLR, 0); /* disable ints */ + snd_cmipci_ch_reset(cm, CM_CH_PLAY); + snd_cmipci_ch_reset(cm, CM_CH_CAPT); + snd_cmipci_write(cm, CM_REG_FUNCTRL0, 0); /* disable channels */ + snd_cmipci_write(cm, CM_REG_FUNCTRL1, 0);
- free_irq(cm->irq, cm); - } + /* reset mixer */ + snd_cmipci_mixer_write(cm, 0, 0);
snd_cmipci_free_gameport(cm); - pci_release_regions(cm->pci); - pci_disable_device(cm->pci); - kfree(cm); - return 0; -} - -static int snd_cmipci_dev_free(struct snd_device *device) -{ - struct cmipci *cm = device->device_data; - return snd_cmipci_free(cm); }
static int snd_cmipci_create_fm(struct cmipci *cm, long fm_port) @@ -2988,13 +2973,10 @@ static int snd_cmipci_create_fm(struct cmipci *cm, long fm_port) }
static int snd_cmipci_create(struct snd_card *card, struct pci_dev *pci, - int dev, struct cmipci **rcmipci) + int dev) { - struct cmipci *cm; + struct cmipci *cm = card->private_data; int err; - static const struct snd_device_ops ops = { - .dev_free = snd_cmipci_dev_free, - }; unsigned int val; long iomidi = 0; int integrated_midi = 0; @@ -3005,18 +2987,10 @@ static int snd_cmipci_create(struct snd_card *card, struct pci_dev *pci, { }, };
- *rcmipci = NULL; - - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;
- cm = kzalloc(sizeof(*cm), GFP_KERNEL); - if (cm == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } - spin_lock_init(&cm->reg_lock); mutex_init(&cm->open_mutex); cm->device = pci->device; @@ -3028,21 +3002,18 @@ static int snd_cmipci_create(struct snd_card *card, struct pci_dev *pci, cm->channel[0].is_dac = cm->channel[1].is_dac = 1; /* dual DAC mode */
err = pci_request_regions(pci, card->driver); - if (err < 0) { - kfree(cm); - pci_disable_device(pci); + if (err < 0) return err; - } cm->iobase = pci_resource_start(pci, 0);
- if (request_irq(pci->irq, snd_cmipci_interrupt, - IRQF_SHARED, KBUILD_MODNAME, cm)) { + if (devm_request_irq(&pci->dev, pci->irq, snd_cmipci_interrupt, + IRQF_SHARED, KBUILD_MODNAME, cm)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); - snd_cmipci_free(cm); return -EBUSY; } cm->irq = pci->irq; card->sync_irq = cm->irq; + card->private_free = snd_cmipci_free;
pci_set_master(cm->pci);
@@ -3142,12 +3113,6 @@ static int snd_cmipci_create(struct snd_card *card, struct pci_dev *pci, sprintf(card->longname, "%s%s at %#lx, irq %i", card->shortname, modelstr, cm->iobase, cm->irq);
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, cm, &ops); - if (err < 0) { - snd_cmipci_free(cm); - return err; - } - if (cm->chip_version >= 39) { val = snd_cmipci_read_b(cm, CM_REG_MPU_PCI + 1); if (val != 0x00 && val != 0xff) { @@ -3240,7 +3205,6 @@ static int snd_cmipci_create(struct snd_card *card, struct pci_dev *pci, if (snd_cmipci_create_gameport(cm, dev) < 0) snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_JYSTK_EN);
- *rcmipci = cm; return 0; }
@@ -3264,10 +3228,11 @@ static int snd_cmipci_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(*cm), &card); if (err < 0) return err; + cm = card->private_data; switch (pci->device) { case PCI_DEVICE_ID_CMEDIA_CM8738: @@ -3283,31 +3248,19 @@ static int snd_cmipci_probe(struct pci_dev *pci, break; }
- err = snd_cmipci_create(card, pci, dev, &cm); + err = snd_cmipci_create(card, pci, dev); if (err < 0) - goto free_card; - - card->private_data = cm; + return err;
err = snd_card_register(card); if (err < 0) - goto free_card; + return err;
pci_set_drvdata(pci, card); dev++; return 0; - -free_card: - snd_card_free(card); - return err; }
-static void snd_cmipci_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); -} - - #ifdef CONFIG_PM_SLEEP /* * power management @@ -3382,7 +3335,6 @@ static struct pci_driver cmipci_driver = { .name = KBUILD_MODNAME, .id_table = snd_cmipci_ids, .probe = snd_cmipci_probe, - .remove = snd_cmipci_remove, .driver = { .pm = SND_CMIPCI_PM_OPS, },