[PATCH 23/51] ALSA: sonicvibes: Allocate resources with device-managed APIs
Takashi Iwai
tiwai at suse.de
Tue Jul 13 16:28:29 CEST 2021
This patch converts the resource management in PCI sonicvibes 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 at suse.de>
---
sound/pci/sonicvibes.c | 117 ++++++++++-------------------------------
1 file changed, 27 insertions(+), 90 deletions(-)
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index 03a48da897e3..c8c49881008f 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -1193,69 +1193,43 @@ static inline int snd_sonicvibes_create_gameport(struct sonicvibes *sonic) { ret
static inline void snd_sonicvibes_free_gameport(struct sonicvibes *sonic) { }
#endif
-static int snd_sonicvibes_free(struct sonicvibes *sonic)
+static void snd_sonicvibes_free(struct snd_card *card)
{
+ struct sonicvibes *sonic = card->private_data;
+
snd_sonicvibes_free_gameport(sonic);
pci_write_config_dword(sonic->pci, 0x40, sonic->dmaa_port);
pci_write_config_dword(sonic->pci, 0x48, sonic->dmac_port);
- if (sonic->irq >= 0)
- free_irq(sonic->irq, sonic);
- release_and_free_resource(sonic->res_dmaa);
- release_and_free_resource(sonic->res_dmac);
- pci_release_regions(sonic->pci);
- pci_disable_device(sonic->pci);
- kfree(sonic);
- return 0;
-}
-
-static int snd_sonicvibes_dev_free(struct snd_device *device)
-{
- struct sonicvibes *sonic = device->device_data;
- return snd_sonicvibes_free(sonic);
}
static int snd_sonicvibes_create(struct snd_card *card,
struct pci_dev *pci,
int reverb,
- int mge,
- struct sonicvibes **rsonic)
+ int mge)
{
- struct sonicvibes *sonic;
+ struct sonicvibes *sonic = card->private_data;
unsigned int dmaa, dmac;
int err;
- static const struct snd_device_ops ops = {
- .dev_free = snd_sonicvibes_dev_free,
- };
- *rsonic = 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 24 bits */
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(24))) {
dev_err(card->dev,
"architecture does not support 24bit PCI busmaster DMA\n");
- pci_disable_device(pci);
return -ENXIO;
}
- sonic = kzalloc(sizeof(*sonic), GFP_KERNEL);
- if (sonic == NULL) {
- pci_disable_device(pci);
- return -ENOMEM;
- }
spin_lock_init(&sonic->reg_lock);
sonic->card = card;
sonic->pci = pci;
sonic->irq = -1;
err = pci_request_regions(pci, "S3 SonicVibes");
- if (err < 0) {
- kfree(sonic);
- pci_disable_device(pci);
+ if (err < 0)
return err;
- }
sonic->sb_port = pci_resource_start(pci, 0);
sonic->enh_port = pci_resource_start(pci, 1);
@@ -1263,14 +1237,14 @@ static int snd_sonicvibes_create(struct snd_card *card,
sonic->midi_port = pci_resource_start(pci, 3);
sonic->game_port = pci_resource_start(pci, 4);
- if (request_irq(pci->irq, snd_sonicvibes_interrupt, IRQF_SHARED,
- KBUILD_MODNAME, sonic)) {
+ if (devm_request_irq(&pci->dev, pci->irq, snd_sonicvibes_interrupt,
+ IRQF_SHARED, KBUILD_MODNAME, sonic)) {
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
- snd_sonicvibes_free(sonic);
return -EBUSY;
}
sonic->irq = pci->irq;
card->sync_irq = sonic->irq;
+ card->private_free = snd_sonicvibes_free;
pci_read_config_dword(pci, 0x40, &dmaa);
pci_read_config_dword(pci, 0x48, &dmac);
@@ -1294,17 +1268,17 @@ static int snd_sonicvibes_create(struct snd_card *card,
pci_write_config_dword(pci, 0x40, dmaa);
pci_write_config_dword(pci, 0x48, dmac);
- sonic->res_dmaa = request_region(dmaa, 0x10, "S3 SonicVibes DDMA-A");
+ sonic->res_dmaa = devm_request_region(&pci->dev, dmaa, 0x10,
+ "S3 SonicVibes DDMA-A");
if (!sonic->res_dmaa) {
- snd_sonicvibes_free(sonic);
dev_err(card->dev,
"unable to grab DDMA-A port at 0x%x-0x%x\n",
dmaa, dmaa + 0x10 - 1);
return -EBUSY;
}
- sonic->res_dmac = request_region(dmac, 0x10, "S3 SonicVibes DDMA-C");
+ sonic->res_dmac = devm_request_region(&pci->dev, dmac, 0x10,
+ "S3 SonicVibes DDMA-C");
if (!sonic->res_dmac) {
- snd_sonicvibes_free(sonic);
dev_err(card->dev,
"unable to grab DDMA-C port at 0x%x-0x%x\n",
dmac, dmac + 0x10 - 1);
@@ -1365,15 +1339,7 @@ static int snd_sonicvibes_create(struct snd_card *card,
#endif
sonic->revision = snd_sonicvibes_in(sonic, SV_IREG_REVISION);
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, sonic, &ops);
- if (err < 0) {
- snd_sonicvibes_free(sonic);
- return err;
- }
-
snd_sonicvibes_proc_init(sonic);
-
- *rsonic = sonic;
return 0;
}
@@ -1429,7 +1395,7 @@ static int snd_sonic_probe(struct pci_dev *pci,
struct sonicvibes *sonic;
struct snd_rawmidi *midi_uart;
struct snd_opl3 *opl3;
- int idx, err;
+ int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
@@ -1438,25 +1404,16 @@ static int snd_sonic_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(*sonic), &card);
if (err < 0)
return err;
- for (idx = 0; idx < 5; idx++) {
- if (pci_resource_start(pci, idx) == 0 ||
- !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
- snd_card_free(card);
- return -ENODEV;
- }
- }
+ sonic = card->private_data;
err = snd_sonicvibes_create(card, pci,
reverb[dev] ? 1 : 0,
- mge[dev] ? 1 : 0,
- &sonic);
- if (err < 0) {
- snd_card_free(card);
+ mge[dev] ? 1 : 0);
+ if (err < 0)
return err;
- }
strcpy(card->driver, "SonicVibes");
strcpy(card->shortname, "S3 SonicVibes");
@@ -1467,65 +1424,45 @@ static int snd_sonic_probe(struct pci_dev *pci,
sonic->irq);
err = snd_sonicvibes_pcm(sonic, 0);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_sonicvibes_mixer(sonic);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_mpu401_uart_new(card, 0, MPU401_HW_SONICVIBES,
sonic->midi_port,
MPU401_INFO_INTEGRATED |
MPU401_INFO_IRQ_HOOK,
-1, &midi_uart);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
snd_sonicvibes_midi(sonic, midi_uart);
err = snd_opl3_create(card, sonic->synth_port,
sonic->synth_port + 2,
OPL3_HW_OPL3_SV, 1, &opl3);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
err = snd_sonicvibes_create_gameport(sonic);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
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_sonic_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
-}
-
static struct pci_driver sonicvibes_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_sonic_ids,
.probe = snd_sonic_probe,
- .remove = snd_sonic_remove,
};
module_pci_driver(sonicvibes_driver);
--
2.26.2
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