[PATCH v2 65/79] ALSA: gus: Allocate resources with device-managed APIs
Takashi Iwai
tiwai at suse.de
Thu Jul 15 09:59:27 CEST 2021
This patch converts the resource management in ISA gus drivers 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 at suse.de>
---
sound/isa/gus/gus_main.c | 44 ++++++++------------------
sound/isa/gus/gusclassic.c | 28 ++++++----------
sound/isa/gus/gusextreme.c | 39 +++++++++--------------
sound/isa/gus/gusmax.c | 65 ++++++++++++--------------------------
sound/isa/gus/interwave.c | 53 +++++++------------------------
5 files changed, 68 insertions(+), 161 deletions(-)
diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c
index 3b46490271fe..ae1e2542ee4a 100644
--- a/sound/isa/gus/gus_main.c
+++ b/sound/isa/gus/gus_main.c
@@ -87,24 +87,10 @@ static void snd_gus_init_control(struct snd_gus_card *gus)
static int snd_gus_free(struct snd_gus_card *gus)
{
- if (gus->gf1.res_port2 == NULL)
- goto __hw_end;
- snd_gf1_stop(gus);
- snd_gus_init_dma_irq(gus, 0);
- __hw_end:
- release_and_free_resource(gus->gf1.res_port1);
- release_and_free_resource(gus->gf1.res_port2);
- if (gus->gf1.irq >= 0)
- free_irq(gus->gf1.irq, (void *) gus);
- if (gus->gf1.dma1 >= 0) {
- disable_dma(gus->gf1.dma1);
- free_dma(gus->gf1.dma1);
+ if (gus->gf1.res_port2) {
+ snd_gf1_stop(gus);
+ snd_gus_init_dma_irq(gus, 0);
}
- if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
- disable_dma(gus->gf1.dma2);
- free_dma(gus->gf1.dma2);
- }
- kfree(gus);
return 0;
}
@@ -130,7 +116,7 @@ int snd_gus_create(struct snd_card *card,
};
*rgus = NULL;
- gus = kzalloc(sizeof(*gus), GFP_KERNEL);
+ gus = devm_kzalloc(card->dev, sizeof(*gus), GFP_KERNEL);
if (gus == NULL)
return -ENOMEM;
spin_lock_init(&gus->reg_lock);
@@ -156,35 +142,33 @@ int snd_gus_create(struct snd_card *card,
gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
/* allocate resources */
- gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)");
+ gus->gf1.res_port1 = devm_request_region(card->dev, port, 16,
+ "GUS GF1 (Adlib/SB)");
if (!gus->gf1.res_port1) {
snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
- snd_gus_free(gus);
return -EBUSY;
}
- gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)");
+ gus->gf1.res_port2 = devm_request_region(card->dev, port + 0x100, 12,
+ "GUS GF1 (Synth)");
if (!gus->gf1.res_port2) {
snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
- snd_gus_free(gus);
return -EBUSY;
}
- if (irq >= 0 && request_irq(irq, snd_gus_interrupt, 0, "GUS GF1", (void *) gus)) {
+ if (irq >= 0 && devm_request_irq(card->dev, irq, snd_gus_interrupt, 0,
+ "GUS GF1", (void *) gus)) {
snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
- snd_gus_free(gus);
return -EBUSY;
}
gus->gf1.irq = irq;
card->sync_irq = irq;
- if (request_dma(dma1, "GUS - 1")) {
+ if (snd_devm_request_dma(card->dev, dma1, "GUS - 1")) {
snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
- snd_gus_free(gus);
return -EBUSY;
}
gus->gf1.dma1 = dma1;
if (dma2 >= 0 && dma1 != dma2) {
- if (request_dma(dma2, "GUS - 2")) {
+ if (snd_devm_request_dma(card->dev, dma2, "GUS - 2")) {
snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
- snd_gus_free(gus);
return -EBUSY;
}
gus->gf1.dma2 = dma2;
@@ -209,10 +193,8 @@ int snd_gus_create(struct snd_card *card,
gus->gf1.volume_ramp = 25;
gus->gf1.smooth_pan = 1;
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops);
- if (err < 0) {
- snd_gus_free(gus);
+ if (err < 0)
return err;
- }
*rgus = gus;
return 0;
}
diff --git a/sound/isa/gus/gusclassic.c b/sound/isa/gus/gusclassic.c
index bca1caa4968c..09cc53ceea2a 100644
--- a/sound/isa/gus/gusclassic.c
+++ b/sound/isa/gus/gusclassic.c
@@ -135,7 +135,7 @@ static int snd_gusclassic_probe(struct device *dev, unsigned int n)
struct snd_gus_card *gus;
int error;
- error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
+ error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
if (error < 0)
return error;
@@ -144,37 +144,37 @@ static int snd_gusclassic_probe(struct device *dev, unsigned int n)
error = snd_gusclassic_create(card, dev, n, &gus);
if (error < 0)
- goto out;
+ return error;
error = snd_gusclassic_detect(gus);
if (error < 0)
- goto out;
+ return error;
gus->joystick_dac = joystick_dac[n];
error = snd_gus_initialize(gus);
if (error < 0)
- goto out;
+ return error;
error = -ENODEV;
if (gus->max_flag || gus->ess_flag) {
dev_err(dev, "GUS Classic or ACE soundcard was "
"not detected at 0x%lx\n", gus->gf1.port);
- goto out;
+ return error;
}
error = snd_gf1_new_mixer(gus);
if (error < 0)
- goto out;
+ return error;
error = snd_gf1_pcm_new(gus, 0, 0);
if (error < 0)
- goto out;
+ return error;
if (!gus->ace_flag) {
error = snd_gf1_rawmidi_new(gus, 0);
if (error < 0)
- goto out;
+ return error;
}
sprintf(card->longname + strlen(card->longname),
@@ -187,27 +187,17 @@ static int snd_gusclassic_probe(struct device *dev, unsigned int n)
error = snd_card_register(card);
if (error < 0)
- goto out;
+ return error;
dev_set_drvdata(dev, card);
return 0;
-
-out: snd_card_free(card);
- return error;
-}
-
-static void snd_gusclassic_remove(struct device *dev, unsigned int n)
-{
- snd_card_free(dev_get_drvdata(dev));
}
static struct isa_driver snd_gusclassic_driver = {
.match = snd_gusclassic_match,
.probe = snd_gusclassic_probe,
- .remove = snd_gusclassic_remove,
#if 0 /* FIXME */
.suspend = snd_gusclassic_suspend,
- .remove = snd_gusclassic_remove,
#endif
.driver = {
.name = DEV_NAME
diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index a409a4a29afc..63d9f2d75df0 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -228,8 +228,8 @@ static int snd_gusextreme_probe(struct device *dev, unsigned int n)
struct snd_opl3 *opl3;
int error;
- error = snd_card_new(dev, index[n], id[n], THIS_MODULE,
- sizeof(struct snd_es1688), &card);
+ error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE,
+ sizeof(struct snd_es1688), &card);
if (error < 0)
return error;
@@ -243,56 +243,56 @@ static int snd_gusextreme_probe(struct device *dev, unsigned int n)
error = snd_gusextreme_es1688_create(card, es1688, dev, n);
if (error < 0)
- goto out;
+ return error;
if (gf1_port[n] < 0)
gf1_port[n] = es1688->port + 0x20;
error = snd_gusextreme_gus_card_create(card, dev, n, &gus);
if (error < 0)
- goto out;
+ return error;
error = snd_gusextreme_detect(gus, es1688);
if (error < 0)
- goto out;
+ return error;
gus->joystick_dac = joystick_dac[n];
error = snd_gus_initialize(gus);
if (error < 0)
- goto out;
+ return error;
error = -ENODEV;
if (!gus->ess_flag) {
dev_err(dev, "GUS Extreme soundcard was not "
"detected at 0x%lx\n", gus->gf1.port);
- goto out;
+ return error;
}
gus->codec_flag = 1;
error = snd_es1688_pcm(card, es1688, 0);
if (error < 0)
- goto out;
+ return error;
error = snd_es1688_mixer(card, es1688);
if (error < 0)
- goto out;
+ return error;
snd_component_add(card, "ES1688");
if (pcm_channels[n] > 0) {
error = snd_gf1_pcm_new(gus, 1, 1);
if (error < 0)
- goto out;
+ return error;
}
error = snd_gf1_new_mixer(gus);
if (error < 0)
- goto out;
+ return error;
error = snd_gusextreme_mixer(card);
if (error < 0)
- goto out;
+ return error;
if (snd_opl3_create(card, es1688->port, es1688->port + 2,
OPL3_HW_OPL3, 0, &opl3) < 0)
@@ -300,14 +300,14 @@ static int snd_gusextreme_probe(struct device *dev, unsigned int n)
else {
error = snd_opl3_hwdep_new(opl3, 0, 2, NULL);
if (error < 0)
- goto out;
+ return error;
}
if (es1688->mpu_port >= 0x300) {
error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
es1688->mpu_port, 0, mpu_irq[n], NULL);
if (error < 0)
- goto out;
+ return error;
}
sprintf(card->longname, "Gravis UltraSound Extreme at 0x%lx, "
@@ -316,24 +316,15 @@ static int snd_gusextreme_probe(struct device *dev, unsigned int n)
error = snd_card_register(card);
if (error < 0)
- goto out;
+ return error;
dev_set_drvdata(dev, card);
return 0;
-
-out: snd_card_free(card);
- return error;
-}
-
-static void snd_gusextreme_remove(struct device *dev, unsigned int n)
-{
- snd_card_free(dev_get_drvdata(dev));
}
static struct isa_driver snd_gusextreme_driver = {
.match = snd_gusextreme_match,
.probe = snd_gusextreme_probe,
- .remove = snd_gusextreme_remove,
#if 0 /* FIXME */
.suspend = snd_gusextreme_suspend,
.resume = snd_gusextreme_resume,
diff --git a/sound/isa/gus/gusmax.c b/sound/isa/gus/gusmax.c
index ad118d462142..6834c0560064 100644
--- a/sound/isa/gus/gusmax.c
+++ b/sound/isa/gus/gusmax.c
@@ -179,16 +179,6 @@ static int snd_gusmax_mixer(struct snd_wss *chip)
return 0;
}
-static void snd_gusmax_free(struct snd_card *card)
-{
- struct snd_gusmax *maxcard = card->private_data;
-
- if (maxcard == NULL)
- return;
- if (maxcard->irq >= 0)
- free_irq(maxcard->irq, (void *)maxcard);
-}
-
static int snd_gusmax_match(struct device *pdev, unsigned int dev)
{
return enable[dev];
@@ -204,11 +194,10 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
struct snd_wss *wss;
struct snd_gusmax *maxcard;
- err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
- sizeof(struct snd_gusmax), &card);
+ err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
+ sizeof(struct snd_gusmax), &card);
if (err < 0)
return err;
- card->private_free = snd_gusmax_free;
maxcard = card->private_data;
maxcard->card = card;
maxcard->irq = -1;
@@ -218,8 +207,7 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
xirq = snd_legacy_find_free_irq(possible_irqs);
if (xirq < 0) {
snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
- err = -EBUSY;
- goto _err;
+ return -EBUSY;
}
}
xdma1 = dma1[dev];
@@ -227,8 +215,7 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
xdma1 = snd_legacy_find_free_dma(possible_dmas);
if (xdma1 < 0) {
snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
- err = -EBUSY;
- goto _err;
+ return -EBUSY;
}
}
xdma2 = dma2[dev];
@@ -236,8 +223,7 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
xdma2 = snd_legacy_find_free_dma(possible_dmas);
if (xdma2 < 0) {
snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
- err = -EBUSY;
- goto _err;
+ return -EBUSY;
}
}
@@ -267,29 +253,28 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
}
}
if (err < 0)
- goto _err;
+ return err;
err = snd_gusmax_detect(gus);
if (err < 0)
- goto _err;
+ return err;
maxcard->gus_status_reg = gus->gf1.reg_irqstat;
maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
snd_gusmax_init(dev, card, gus);
err = snd_gus_initialize(gus);
if (err < 0)
- goto _err;
+ return err;
if (!gus->max_flag) {
snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
- err = -ENODEV;
- goto _err;
+ return -ENODEV;
}
- if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) {
+ if (devm_request_irq(card->dev, xirq, snd_gusmax_interrupt, 0,
+ "GUS MAX", (void *)maxcard)) {
snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
- err = -EBUSY;
- goto _err;
+ return -EBUSY;
}
maxcard->irq = xirq;
card->sync_irq = maxcard->irq;
@@ -303,32 +288,32 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
WSS_HWSHARE_DMA2,
&wss);
if (err < 0)
- goto _err;
+ return err;
err = snd_wss_pcm(wss, 0);
if (err < 0)
- goto _err;
+ return err;
err = snd_wss_mixer(wss);
if (err < 0)
- goto _err;
+ return err;
err = snd_wss_timer(wss, 2);
if (err < 0)
- goto _err;
+ return err;
if (pcm_channels[dev] > 0) {
err = snd_gf1_pcm_new(gus, 1, 1);
if (err < 0)
- goto _err;
+ return err;
}
err = snd_gusmax_mixer(wss);
if (err < 0)
- goto _err;
+ return err;
err = snd_gf1_rawmidi_new(gus, 0);
if (err < 0)
- goto _err;
+ return err;
sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
if (xdma2 >= 0)
@@ -336,22 +321,13 @@ static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
err = snd_card_register(card);
if (err < 0)
- goto _err;
+ return err;
maxcard->gus = gus;
maxcard->wss = wss;
dev_set_drvdata(pdev, card);
return 0;
-
- _err:
- snd_card_free(card);
- return err;
-}
-
-static void snd_gusmax_remove(struct device *devptr, unsigned int dev)
-{
- snd_card_free(dev_get_drvdata(devptr));
}
#define DEV_NAME "gusmax"
@@ -359,7 +335,6 @@ static void snd_gusmax_remove(struct device *devptr, unsigned int dev)
static struct isa_driver snd_gusmax_driver = {
.match = snd_gusmax_match,
.probe = snd_gusmax_probe,
- .remove = snd_gusmax_remove,
/* FIXME: suspend/resume */
.driver = {
.name = DEV_NAME
diff --git a/sound/isa/gus/interwave.c b/sound/isa/gus/interwave.c
index 755de47d0bb6..20f490e9d563 100644
--- a/sound/isa/gus/interwave.c
+++ b/sound/isa/gus/interwave.c
@@ -204,13 +204,15 @@ static int snd_interwave_detect_stb(struct snd_interwave *iwcard,
port = 0x360;
}
while (port <= 0x380) {
- iwcard->i2c_res = request_region(port, 1, "InterWave (I2C bus)");
+ iwcard->i2c_res = devm_request_region(card->dev, port, 1,
+ "InterWave (I2C bus)");
if (iwcard->i2c_res)
break;
port += 0x10;
}
} else {
- iwcard->i2c_res = request_region(port, 1, "InterWave (I2C bus)");
+ iwcard->i2c_res = devm_request_region(card->dev, port, 1,
+ "InterWave (I2C bus)");
}
if (iwcard->i2c_res == NULL) {
snd_printk(KERN_ERR "interwave: can't grab i2c bus port\n");
@@ -598,19 +600,6 @@ static int snd_interwave_pnp(int dev, struct snd_interwave *iwcard,
}
#endif /* CONFIG_PNP */
-static void snd_interwave_free(struct snd_card *card)
-{
- struct snd_interwave *iwcard = card->private_data;
-
- if (iwcard == NULL)
- return;
-#ifdef SNDRV_STB
- release_and_free_resource(iwcard->i2c_res);
-#endif
- if (iwcard->irq >= 0)
- free_irq(iwcard->irq, (void *)iwcard);
-}
-
static int snd_interwave_card_new(struct device *pdev, int dev,
struct snd_card **cardp)
{
@@ -618,14 +607,13 @@ static int snd_interwave_card_new(struct device *pdev, int dev,
struct snd_interwave *iwcard;
int err;
- err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
- sizeof(struct snd_interwave), &card);
+ err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE,
+ sizeof(struct snd_interwave), &card);
if (err < 0)
return err;
iwcard = card->private_data;
iwcard->card = card;
iwcard->irq = -1;
- card->private_free = snd_interwave_free;
*cardp = card;
return 0;
}
@@ -671,8 +659,8 @@ static int snd_interwave_probe(struct snd_card *card, int dev)
if (err < 0)
return err;
- if (request_irq(xirq, snd_interwave_interrupt, 0,
- "InterWave", iwcard)) {
+ if (devm_request_irq(card->dev, xirq, snd_interwave_interrupt, 0,
+ "InterWave", iwcard)) {
snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
return -EBUSY;
}
@@ -779,10 +767,8 @@ static int snd_interwave_isa_probe1(int dev, struct device *devptr)
return err;
err = snd_interwave_probe(card, dev);
- if (err < 0) {
- snd_card_free(card);
+ if (err < 0)
return err;
- }
dev_set_drvdata(devptr, card);
return 0;
}
@@ -843,15 +829,9 @@ static int snd_interwave_isa_probe(struct device *pdev,
}
}
-static void snd_interwave_isa_remove(struct device *devptr, unsigned int dev)
-{
- snd_card_free(dev_get_drvdata(devptr));
-}
-
static struct isa_driver snd_interwave_driver = {
.match = snd_interwave_isa_match,
.probe = snd_interwave_isa_probe,
- .remove = snd_interwave_isa_remove,
/* FIXME: suspend,resume */
.driver = {
.name = INTERWAVE_DRIVER
@@ -878,32 +858,21 @@ static int snd_interwave_pnp_detect(struct pnp_card_link *pcard,
return res;
res = snd_interwave_pnp(dev, card->private_data, pcard, pid);
- if (res < 0) {
- snd_card_free(card);
+ if (res < 0)
return res;
- }
res = snd_interwave_probe(card, dev);
- if (res < 0) {
- snd_card_free(card);
+ if (res < 0)
return res;
- }
pnp_set_card_drvdata(pcard, card);
dev++;
return 0;
}
-static void snd_interwave_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 interwave_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = INTERWAVE_PNP_DRIVER,
.id_table = snd_interwave_pnpids,
.probe = snd_interwave_pnp_detect,
- .remove = snd_interwave_pnp_remove,
/* FIXME: suspend,resume */
};
--
2.26.2
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