[PATCH 25/51] ALSA: ali5451: Allocate resources with device-managed APIs
Takashi Iwai
tiwai at suse.de
Tue Jul 13 16:28:31 CEST 2021
This patch converts the resource management in PCI ali5451 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/ali5451/ali5451.c | 88 +++++++++----------------------------
1 file changed, 20 insertions(+), 68 deletions(-)
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 0d66b92466d5..ccbf9e2c72d6 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -1914,22 +1914,14 @@ static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
#define ALI_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
-static int snd_ali_free(struct snd_ali * codec)
+static void snd_ali_free(struct snd_card *card)
{
+ struct snd_ali *codec = card->private_data;
+
if (codec->hw_initialized)
snd_ali_disable_address_interrupt(codec);
- if (codec->irq >= 0)
- free_irq(codec->irq, codec);
- if (codec->port)
- pci_release_regions(codec->pci);
- pci_disable_device(codec->pci);
-#ifdef CONFIG_PM_SLEEP
- kfree(codec->image);
-#endif
pci_dev_put(codec->pci_m1533);
pci_dev_put(codec->pci_m7101);
- kfree(codec);
- return 0;
}
static int snd_ali_chip_init(struct snd_ali *codec)
@@ -2017,8 +2009,9 @@ static int snd_ali_resources(struct snd_ali *codec)
return err;
codec->port = pci_resource_start(codec->pci, 0);
- if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
- IRQF_SHARED, KBUILD_MODNAME, codec)) {
+ if (devm_request_irq(&codec->pci->dev, codec->pci->irq,
+ snd_ali_card_interrupt,
+ IRQF_SHARED, KBUILD_MODNAME, codec)) {
dev_err(codec->card->dev, "Unable to request irq.\n");
return -EBUSY;
}
@@ -2027,48 +2020,29 @@ static int snd_ali_resources(struct snd_ali *codec)
dev_dbg(codec->card->dev, "resources allocated.\n");
return 0;
}
-static int snd_ali_dev_free(struct snd_device *device)
-{
- struct snd_ali *codec = device->device_data;
- snd_ali_free(codec);
- return 0;
-}
static int snd_ali_create(struct snd_card *card,
struct pci_dev *pci,
int pcm_streams,
- int spdif_support,
- struct snd_ali **r_ali)
+ int spdif_support)
{
struct snd_ali *codec;
int i, err;
unsigned short cmdw;
- static const struct snd_device_ops ops = {
- .dev_free = snd_ali_dev_free,
- };
-
- *r_ali = NULL;
dev_dbg(card->dev, "creating ...\n");
/* 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 31 bits */
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31))) {
dev_err(card->dev,
"architecture does not support 31bit PCI busmaster DMA\n");
- pci_disable_device(pci);
return -ENXIO;
}
- codec = kzalloc(sizeof(*codec), GFP_KERNEL);
- if (!codec) {
- pci_disable_device(pci);
- return -ENOMEM;
- }
-
spin_lock_init(&codec->reg_lock);
spin_lock_init(&codec->voice_alloc);
@@ -2089,12 +2063,10 @@ static int snd_ali_create(struct snd_card *card,
cmdw |= PCI_COMMAND_IO;
pci_write_config_word(pci, PCI_COMMAND, cmdw);
}
- pci_set_master(pci);
- if (snd_ali_resources(codec)) {
- snd_ali_free(codec);
+ if (snd_ali_resources(codec))
return -EBUSY;
- }
+ card->private_free = snd_ali_free;
codec->synth.chmap = 0;
codec->synth.chcnt = 0;
@@ -2121,24 +2093,15 @@ static int snd_ali_create(struct snd_card *card,
codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
if (!codec->pci_m1533) {
dev_err(card->dev, "cannot find ALi 1533 chip.\n");
- snd_ali_free(codec);
return -ENODEV;
}
/* M7101: power management */
codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
dev_err(card->dev, "cannot find ALi 7101 chip.\n");
- snd_ali_free(codec);
return -ENODEV;
}
- dev_dbg(card->dev, "snd_device_new is called.\n");
- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
- if (err < 0) {
- snd_ali_free(codec);
- return err;
- }
-
/* initialise synth voices*/
for (i = 0; i < ALI_CHANNELS; i++)
codec->synth.voices[i].number = i;
@@ -2150,16 +2113,14 @@ static int snd_ali_create(struct snd_card *card,
}
#ifdef CONFIG_PM_SLEEP
- codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
+ codec->image = devm_kmalloc(&pci->dev, sizeof(*codec->image),
+ GFP_KERNEL);
if (!codec->image)
dev_warn(card->dev, "can't allocate apm buffer\n");
#endif
snd_ali_enable_address_interrupt(codec);
codec->hw_initialized = 1;
-
- *r_ali = codec;
- dev_dbg(card->dev, "created.\n");
return 0;
}
@@ -2172,24 +2133,25 @@ static int snd_ali_probe(struct pci_dev *pci,
dev_dbg(&pci->dev, "probe ...\n");
- err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
+ err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
+ sizeof(*codec), &card);
if (err < 0)
return err;
+ codec = card->private_data;
- err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
+ err = snd_ali_create(card, pci, pcm_channels, spdif);
if (err < 0)
- goto error;
- card->private_data = codec;
+ return err;
dev_dbg(&pci->dev, "mixer building ...\n");
err = snd_ali_mixer(codec);
if (err < 0)
- goto error;
+ return err;
dev_dbg(&pci->dev, "pcm building ...\n");
err = snd_ali_build_pcms(codec);
if (err < 0)
- goto error;
+ return err;
snd_ali_proc_init(codec);
@@ -2202,26 +2164,16 @@ static int snd_ali_probe(struct pci_dev *pci,
dev_dbg(&pci->dev, "register card.\n");
err = snd_card_register(card);
if (err < 0)
- goto error;
+ return err;
pci_set_drvdata(pci, card);
return 0;
-
- error:
- snd_card_free(card);
- return err;
-}
-
-static void snd_ali_remove(struct pci_dev *pci)
-{
- snd_card_free(pci_get_drvdata(pci));
}
static struct pci_driver ali5451_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_ali_ids,
.probe = snd_ali_probe,
- .remove = snd_ali_remove,
.driver = {
.pm = ALI_PM_OPS,
},
--
2.26.2
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