mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-24 04:34:08 +08:00
ALSA: es1968: Allocate resources with device-managed APIs
This patch converts the resource management in PCI es1968 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/20210715075941.23332-19-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
08e9d3ab4c
commit
a7b4cbfdc7
@ -2442,7 +2442,8 @@ static int snd_es1968_create_gameport(struct es1968 *chip, int dev)
|
||||
if (!joystick[dev])
|
||||
return -ENODEV;
|
||||
|
||||
r = request_region(JOYSTICK_ADDR, 8, "ES1968 gameport");
|
||||
r = devm_request_region(&chip->pci->dev, JOYSTICK_ADDR, 8,
|
||||
"ES1968 gameport");
|
||||
if (!r)
|
||||
return -EBUSY;
|
||||
|
||||
@ -2450,7 +2451,6 @@ static int snd_es1968_create_gameport(struct es1968 *chip, int dev)
|
||||
if (!gp) {
|
||||
dev_err(chip->card->dev,
|
||||
"cannot allocate memory for gameport\n");
|
||||
release_and_free_resource(r);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
@ -2461,7 +2461,6 @@ static int snd_es1968_create_gameport(struct es1968 *chip, int dev)
|
||||
gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
|
||||
gameport_set_dev_parent(gp, &chip->pci->dev);
|
||||
gp->io = JOYSTICK_ADDR;
|
||||
gameport_set_port_data(gp, r);
|
||||
|
||||
gameport_register_port(gp);
|
||||
|
||||
@ -2471,12 +2470,8 @@ static int snd_es1968_create_gameport(struct es1968 *chip, int dev)
|
||||
static void snd_es1968_free_gameport(struct es1968 *chip)
|
||||
{
|
||||
if (chip->gameport) {
|
||||
struct resource *r = gameport_get_port_data(chip->gameport);
|
||||
|
||||
gameport_unregister_port(chip->gameport);
|
||||
chip->gameport = NULL;
|
||||
|
||||
release_and_free_resource(r);
|
||||
}
|
||||
}
|
||||
#else
|
||||
@ -2490,7 +2485,7 @@ static int snd_es1968_input_register(struct es1968 *chip)
|
||||
struct input_dev *input_dev;
|
||||
int err;
|
||||
|
||||
input_dev = input_allocate_device();
|
||||
input_dev = devm_input_allocate_device(&chip->pci->dev);
|
||||
if (!input_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
@ -2510,10 +2505,8 @@ static int snd_es1968_input_register(struct es1968 *chip)
|
||||
__set_bit(KEY_VOLUMEUP, input_dev->keybit);
|
||||
|
||||
err = input_register_device(input_dev);
|
||||
if (err) {
|
||||
input_free_device(input_dev);
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
|
||||
chip->input_dev = input_dev;
|
||||
return 0;
|
||||
@ -2597,13 +2590,11 @@ static const struct snd_tea575x_ops snd_es1968_tea_ops = {
|
||||
};
|
||||
#endif
|
||||
|
||||
static int snd_es1968_free(struct es1968 *chip)
|
||||
static void snd_es1968_free(struct snd_card *card)
|
||||
{
|
||||
struct es1968 *chip = card->private_data;
|
||||
|
||||
cancel_work_sync(&chip->hwvol_work);
|
||||
#ifdef CONFIG_SND_ES1968_INPUT
|
||||
if (chip->input_dev)
|
||||
input_unregister_device(chip->input_dev);
|
||||
#endif
|
||||
|
||||
if (chip->io_port) {
|
||||
outw(1, chip->io_port + 0x04); /* clear WP interrupts */
|
||||
@ -2615,19 +2606,7 @@ static int snd_es1968_free(struct es1968 *chip)
|
||||
v4l2_device_unregister(&chip->v4l2_dev);
|
||||
#endif
|
||||
|
||||
if (chip->irq >= 0)
|
||||
free_irq(chip->irq, chip);
|
||||
snd_es1968_free_gameport(chip);
|
||||
pci_release_regions(chip->pci);
|
||||
pci_disable_device(chip->pci);
|
||||
kfree(chip);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_es1968_dev_free(struct snd_device *device)
|
||||
{
|
||||
struct es1968 *chip = device->device_data;
|
||||
return snd_es1968_free(chip);
|
||||
}
|
||||
|
||||
struct ess_device_list {
|
||||
@ -2657,35 +2636,22 @@ static int snd_es1968_create(struct snd_card *card,
|
||||
int capt_streams,
|
||||
int chip_type,
|
||||
int do_pm,
|
||||
int radio_nr,
|
||||
struct es1968 **chip_ret)
|
||||
int radio_nr)
|
||||
{
|
||||
static const struct snd_device_ops ops = {
|
||||
.dev_free = snd_es1968_dev_free,
|
||||
};
|
||||
struct es1968 *chip;
|
||||
struct es1968 *chip = card->private_data;
|
||||
int i, err;
|
||||
|
||||
*chip_ret = NULL;
|
||||
|
||||
/* enable PCI device */
|
||||
err = pci_enable_device(pci);
|
||||
err = pcim_enable_device(pci);
|
||||
if (err < 0)
|
||||
return err;
|
||||
/* check, if we can restrict PCI DMA transfers to 28 bits */
|
||||
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) {
|
||||
dev_err(card->dev,
|
||||
"architecture does not support 28bit PCI busmaster DMA\n");
|
||||
pci_disable_device(pci);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
|
||||
if (! chip) {
|
||||
pci_disable_device(pci);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Set Vars */
|
||||
chip->type = chip_type;
|
||||
spin_lock_init(&chip->reg_lock);
|
||||
@ -2702,20 +2668,17 @@ static int snd_es1968_create(struct snd_card *card,
|
||||
chip->capture_streams = capt_streams;
|
||||
|
||||
err = pci_request_regions(pci, "ESS Maestro");
|
||||
if (err < 0) {
|
||||
kfree(chip);
|
||||
pci_disable_device(pci);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
chip->io_port = pci_resource_start(pci, 0);
|
||||
if (request_irq(pci->irq, snd_es1968_interrupt, IRQF_SHARED,
|
||||
KBUILD_MODNAME, chip)) {
|
||||
if (devm_request_irq(&pci->dev, pci->irq, snd_es1968_interrupt,
|
||||
IRQF_SHARED, KBUILD_MODNAME, chip)) {
|
||||
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
|
||||
snd_es1968_free(chip);
|
||||
return -EBUSY;
|
||||
}
|
||||
chip->irq = pci->irq;
|
||||
card->sync_irq = chip->irq;
|
||||
card->private_free = snd_es1968_free;
|
||||
|
||||
/* Clear Maestro_map */
|
||||
for (i = 0; i < 32; i++)
|
||||
@ -2749,21 +2712,13 @@ static int snd_es1968_create(struct snd_card *card,
|
||||
|
||||
snd_es1968_chip_init(chip);
|
||||
|
||||
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
|
||||
if (err < 0) {
|
||||
snd_es1968_free(chip);
|
||||
return err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SND_ES1968_RADIO
|
||||
/* don't play with GPIOs on laptops */
|
||||
if (chip->pci->subsystem_vendor != 0x125d)
|
||||
goto no_radio;
|
||||
return 0;
|
||||
err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
|
||||
if (err < 0) {
|
||||
snd_es1968_free(chip);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
chip->tea.v4l2_dev = &chip->v4l2_dev;
|
||||
chip->tea.private_data = chip;
|
||||
chip->tea.radio_nr = radio_nr;
|
||||
@ -2779,11 +2734,7 @@ static int snd_es1968_create(struct snd_card *card,
|
||||
break;
|
||||
}
|
||||
}
|
||||
no_radio:
|
||||
#endif
|
||||
|
||||
*chip_ret = chip;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -2806,10 +2757,11 @@ static int snd_es1968_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;
|
||||
|
||||
if (total_bufsize[dev] < 128)
|
||||
total_bufsize[dev] = 128;
|
||||
@ -2821,13 +2773,9 @@ static int snd_es1968_probe(struct pci_dev *pci,
|
||||
pcm_substreams_c[dev],
|
||||
pci_id->driver_data,
|
||||
use_pm[dev],
|
||||
radio_nr[dev],
|
||||
&chip);
|
||||
if (err < 0) {
|
||||
snd_card_free(card);
|
||||
radio_nr[dev]);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
card->private_data = chip;
|
||||
|
||||
switch (chip->type) {
|
||||
case TYPE_MAESTRO2E:
|
||||
@ -2845,16 +2793,12 @@ static int snd_es1968_probe(struct pci_dev *pci,
|
||||
}
|
||||
|
||||
err = snd_es1968_pcm(chip, 0);
|
||||
if (err < 0) {
|
||||
snd_card_free(card);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
|
||||
err = snd_es1968_mixer(chip);
|
||||
if (err < 0) {
|
||||
snd_card_free(card);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
|
||||
if (enable_mpu[dev] == 2) {
|
||||
/* check the deny list */
|
||||
@ -2897,25 +2841,17 @@ static int snd_es1968_probe(struct pci_dev *pci,
|
||||
card->shortname, chip->io_port, chip->irq);
|
||||
|
||||
err = snd_card_register(card);
|
||||
if (err < 0) {
|
||||
snd_card_free(card);
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
pci_set_drvdata(pci, card);
|
||||
dev++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void snd_es1968_remove(struct pci_dev *pci)
|
||||
{
|
||||
snd_card_free(pci_get_drvdata(pci));
|
||||
}
|
||||
|
||||
static struct pci_driver es1968_driver = {
|
||||
.name = KBUILD_MODNAME,
|
||||
.id_table = snd_es1968_ids,
|
||||
.probe = snd_es1968_probe,
|
||||
.remove = snd_es1968_remove,
|
||||
.driver = {
|
||||
.pm = ES1968_PM_OPS,
|
||||
},
|
||||
|
||||
Loading…
Reference in New Issue
Block a user