This patch converts the resource management in ISA sscape driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/isa/sscape.c | 92 ++++++++++------------------------------------
1 file changed, 20 insertions(+), 72 deletions(-)
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index e70ef9aee545..0bc0025f7c19 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -327,17 +327,6 @@ static void activate_ad1845_unsafe(unsigned io_base)
sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80);
}
-/*
- * Do the necessary ALSA-level cleanup to deallocate our driver ...
- */
-static void soundscape_free(struct snd_card *c)
-{
- struct soundscape *sscape = get_card_soundscape(c);
- release_and_free_resource(sscape->io_res);
- release_and_free_resource(sscape->wss_res);
- free_dma(sscape->chip->dma1);
-}
-
/*
* Tell the SoundScape to begin a DMA transfer using the given channel.
* All locking issues are left to the caller.
@@ -941,7 +930,7 @@ static int create_sscape(int dev, struct snd_card *card)
* Grab IO ports that we will need to probe so that we
* can detect and control this hardware ...
*/
- io_res = request_region(port[dev], 8, "SoundScape");
+ io_res = devm_request_region(card->dev, port[dev], 8, "SoundScape");
if (!io_res) {
snd_printk(KERN_ERR
"sscape: can't grab port 0x%lx\n", port[dev]);
@@ -949,22 +938,22 @@ static int create_sscape(int dev, struct snd_card *card)
}
wss_res = NULL;
if (sscape->type == SSCAPE_VIVO) {
- wss_res = request_region(wss_port[dev], 4, "SoundScape");
+ wss_res = devm_request_region(card->dev, wss_port[dev], 4,
+ "SoundScape");
if (!wss_res) {
snd_printk(KERN_ERR "sscape: can't grab port 0x%lx\n",
wss_port[dev]);
- err = -EBUSY;
- goto _release_region;
+ return -EBUSY;
}
}
/*
* Grab one DMA channel ...
*/
- err = request_dma(dma[dev], "SoundScape");
+ err = snd_devm_request_dma(card->dev, dma[dev], "SoundScape");
if (err < 0) {
snd_printk(KERN_ERR "sscape: can't grab DMA %d\n", dma[dev]);
- goto _release_region;
+ return err;
}
spin_lock_init(&sscape->lock);
@@ -975,8 +964,7 @@ static int create_sscape(int dev, struct snd_card *card)
if (!detect_sscape(sscape, wss_port[dev])) {
printk(KERN_ERR "sscape: hardware not detected at 0x%x\n",
sscape->io_base);
- err = -ENODEV;
- goto _release_dma;
+ return -ENODEV;
}
switch (sscape->type) {
@@ -1006,15 +994,13 @@ static int create_sscape(int dev, struct snd_card *card)
irq_cfg = get_irq_config(sscape->type, irq[dev]);
if (irq_cfg == INVALID_IRQ) {
snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]);
- err = -ENXIO;
- goto _release_dma;
+ return -ENXIO;
}
mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]);
if (mpu_irq_cfg == INVALID_IRQ) {
snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]);
- err = -ENXIO;
- goto _release_dma;
+ return -ENXIO;
}
/*
@@ -1060,7 +1046,7 @@ static int create_sscape(int dev, struct snd_card *card)
snd_printk(KERN_ERR
"sscape: No AD1845 device at 0x%lx, IRQ %d\n",
wss_port[dev], irq[dev]);
- goto _release_dma;
+ return err;
}
strcpy(card->driver, "SoundScape");
strcpy(card->shortname, name);
@@ -1082,7 +1068,7 @@ static int create_sscape(int dev, struct snd_card *card)
snd_printk(KERN_ERR "sscape: Failed to create "
"MPU-401 device at 0x%lx\n",
port[dev]);
- goto _release_dma;
+ return err;
}
/*
@@ -1109,24 +1095,7 @@ static int create_sscape(int dev, struct snd_card *card)
}
}
- /*
- * Now that we have successfully created this sound card,
- * it is safe to store the pointer.
- * NOTE: we only register the sound card's "destructor"
- * function now that our "constructor" has completed.
- */
- card->private_free = soundscape_free;
-
return 0;
-
-_release_dma:
- free_dma(dma[dev]);
-
-_release_region:
- release_and_free_resource(wss_res);
- release_and_free_resource(io_res);
-
- return err;
}
@@ -1156,8 +1125,8 @@ static int snd_sscape_probe(struct device *pdev, unsigned int dev)
struct soundscape *sscape;
int ret;
- ret = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
- sizeof(struct soundscape), &card);
+ ret = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
+ sizeof(struct soundscape), &card);
if (ret < 0)
return ret;
@@ -1168,24 +1137,15 @@ static int snd_sscape_probe(struct device *pdev, unsigned int dev)
ret = create_sscape(dev, card);
if (ret < 0)
- goto _release_card;
+ return ret;
ret = snd_card_register(card);
if (ret < 0) {
snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
- goto _release_card;
+ return ret;
}
dev_set_drvdata(pdev, card);
return 0;
-
-_release_card:
- snd_card_free(card);
- return ret;
-}
-
-static void snd_sscape_remove(struct device *devptr, unsigned int dev)
-{
- snd_card_free(dev_get_drvdata(devptr));
}
#define DEV_NAME "sscape"
@@ -1193,7 +1153,6 @@ static void snd_sscape_remove(struct device *devptr, unsigned int dev)
static struct isa_driver snd_sscape_driver = {
.match = snd_sscape_match,
.probe = snd_sscape_probe,
- .remove = snd_sscape_remove,
/* FIXME: suspend/resume */
.driver = {
.name = DEV_NAME
@@ -1244,9 +1203,9 @@ static int sscape_pnp_detect(struct pnp_card_link *pcard,
* Create a new ALSA sound card entry, in anticipation
* of detecting our hardware ...
*/
- ret = snd_card_new(&pcard->card->dev,
- index[idx], id[idx], THIS_MODULE,
- sizeof(struct soundscape), &card);
+ ret = snd_devm_card_new(&pcard->card->dev,
+ index[idx], id[idx], THIS_MODULE,
+ sizeof(struct soundscape), &card);
if (ret < 0)
return ret;
@@ -1277,27 +1236,17 @@ static int sscape_pnp_detect(struct pnp_card_link *pcard,
ret = create_sscape(idx, card);
if (ret < 0)
- goto _release_card;
+ return ret;
ret = snd_card_register(card);
if (ret < 0) {
snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
- goto _release_card;
+ return ret;
}
pnp_set_card_drvdata(pcard, card);
++idx;
return 0;
-
-_release_card:
- snd_card_free(card);
- return ret;
-}
-
-static void sscape_pnp_remove(struct pnp_card_link *pcard)
-{
- snd_card_free(pnp_get_card_drvdata(pcard));
- pnp_set_card_drvdata(pcard, NULL);
}
static struct pnp_card_driver sscape_pnpc_driver = {
@@ -1305,7 +1254,6 @@ static struct pnp_card_driver sscape_pnpc_driver = {
.name = "sscape",
.id_table = sscape_pnpids,
.probe = sscape_pnp_detect,
- .remove = sscape_pnp_remove,
};
#endif /* CONFIG_PNP */
--
2.26.2
