From 34d6599bc107c5eebe24961fe18cdaa6e9e22aef Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 15 Jul 2021 09:59:25 +0200 Subject: ALSA: es18xx: Allocate resources with device-managed APIs This patch converts the resource management in ISA es18xx 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. Link: https://lore.kernel.org/r/20210715075941.23332-64-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/isa/es18xx.c | 112 ++++++++++------------------------------------------- 1 file changed, 20 insertions(+), 92 deletions(-) (limited to 'sound') diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c index 68b9c59e1127..3fcd168480b6 100644 --- a/sound/isa/es18xx.c +++ b/sound/isa/es18xx.c @@ -87,9 +87,6 @@ struct snd_es18xx { unsigned long port; /* port of ESS chip */ unsigned long ctrl_port; /* Control port of ESS chip */ - struct resource *res_port; - struct resource *res_mpu_port; - struct resource *res_ctrl_port; int irq; /* IRQ number of ESS chip */ int dma1; /* DMA1 */ int dma2; /* DMA2 */ @@ -1531,7 +1528,7 @@ static int snd_es18xx_initialize(struct snd_es18xx *chip, return 0; } -static int snd_es18xx_identify(struct snd_es18xx *chip) +static int snd_es18xx_identify(struct snd_card *card, struct snd_es18xx *chip) { int hi,lo; @@ -1573,8 +1570,8 @@ static int snd_es18xx_identify(struct snd_es18xx *chip) udelay(10); chip->ctrl_port += inb(chip->port + 0x05); - chip->res_ctrl_port = request_region(chip->ctrl_port, 8, "ES18xx - CTRL"); - if (!chip->res_ctrl_port) { + if (!devm_request_region(card->dev, chip->ctrl_port, 8, + "ES18xx - CTRL")) { snd_printk(KERN_ERR PFX "unable go grab port 0x%lx\n", chip->ctrl_port); return -EBUSY; } @@ -1601,11 +1598,12 @@ static int snd_es18xx_identify(struct snd_es18xx *chip) return 0; } -static int snd_es18xx_probe(struct snd_es18xx *chip, +static int snd_es18xx_probe(struct snd_card *card, + struct snd_es18xx *chip, unsigned long mpu_port, unsigned long fm_port) { - if (snd_es18xx_identify(chip) < 0) { + if (snd_es18xx_identify(card, chip) < 0) { snd_printk(KERN_ERR PFX "[0x%lx] ESS chip not found\n", chip->port); return -ENODEV; } @@ -1722,31 +1720,6 @@ static int snd_es18xx_resume(struct snd_card *card) } #endif /* CONFIG_PM */ -static int snd_es18xx_free(struct snd_card *card) -{ - struct snd_es18xx *chip = card->private_data; - - release_and_free_resource(chip->res_port); - release_and_free_resource(chip->res_ctrl_port); - release_and_free_resource(chip->res_mpu_port); - if (chip->irq >= 0) - free_irq(chip->irq, (void *) card); - if (chip->dma1 >= 0) { - disable_dma(chip->dma1); - free_dma(chip->dma1); - } - if (chip->dma2 >= 0 && chip->dma1 != chip->dma2) { - disable_dma(chip->dma2); - free_dma(chip->dma2); - } - return 0; -} - -static int snd_es18xx_dev_free(struct snd_device *device) -{ - return snd_es18xx_free(device->card); -} - static int snd_es18xx_new_device(struct snd_card *card, unsigned long port, unsigned long mpu_port, @@ -1754,10 +1727,6 @@ static int snd_es18xx_new_device(struct snd_card *card, int irq, int dma1, int dma2) { struct snd_es18xx *chip = card->private_data; - static const struct snd_device_ops ops = { - .dev_free = snd_es18xx_dev_free, - }; - int err; spin_lock_init(&chip->reg_lock); spin_lock_init(&chip->mixer_lock); @@ -1768,45 +1737,34 @@ static int snd_es18xx_new_device(struct snd_card *card, chip->audio2_vol = 0x00; chip->active = 0; - chip->res_port = request_region(port, 16, "ES18xx"); - if (chip->res_port == NULL) { - snd_es18xx_free(card); + if (!devm_request_region(card->dev, port, 16, "ES18xx")) { snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1); return -EBUSY; } - if (request_irq(irq, snd_es18xx_interrupt, 0, "ES18xx", - (void *) card)) { - snd_es18xx_free(card); + if (devm_request_irq(card->dev, irq, snd_es18xx_interrupt, 0, "ES18xx", + (void *) card)) { snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq); return -EBUSY; } chip->irq = irq; card->sync_irq = chip->irq; - if (request_dma(dma1, "ES18xx DMA 1")) { - snd_es18xx_free(card); + if (snd_devm_request_dma(card->dev, dma1, "ES18xx DMA 1")) { snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1); return -EBUSY; } chip->dma1 = dma1; - if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) { - snd_es18xx_free(card); + if (dma2 != dma1 && + snd_devm_request_dma(card->dev, dma2, "ES18xx DMA 2")) { snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2); return -EBUSY; } chip->dma2 = dma2; - if (snd_es18xx_probe(chip, mpu_port, fm_port) < 0) { - snd_es18xx_free(card); + if (snd_es18xx_probe(card, chip, mpu_port, fm_port) < 0) return -ENODEV; - } - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_es18xx_free(card); - return err; - } return 0; } @@ -2088,8 +2046,8 @@ static int snd_audiodrive_pnpc(int dev, struct snd_es18xx *chip, static int snd_es18xx_card_new(struct device *pdev, int dev, struct snd_card **cardp) { - return snd_card_new(pdev, index[dev], id[dev], THIS_MODULE, - sizeof(struct snd_es18xx), cardp); + return snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE, + sizeof(struct snd_es18xx), cardp); } static int snd_audiodrive_probe(struct snd_card *card, int dev) @@ -2164,10 +2122,8 @@ static int snd_es18xx_isa_probe1(int dev, struct device *devptr) if (err < 0) return err; err = snd_audiodrive_probe(card, dev); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } dev_set_drvdata(devptr, card); return 0; } @@ -2215,12 +2171,6 @@ static int snd_es18xx_isa_probe(struct device *pdev, unsigned int dev) } } -static void snd_es18xx_isa_remove(struct device *devptr, - unsigned int dev) -{ - snd_card_free(dev_get_drvdata(devptr)); -} - #ifdef CONFIG_PM static int snd_es18xx_isa_suspend(struct device *dev, unsigned int n, pm_message_t state) @@ -2239,7 +2189,6 @@ static int snd_es18xx_isa_resume(struct device *dev, unsigned int n) static struct isa_driver snd_es18xx_isa_driver = { .match = snd_es18xx_isa_match, .probe = snd_es18xx_isa_probe, - .remove = snd_es18xx_isa_remove, #ifdef CONFIG_PM .suspend = snd_es18xx_isa_suspend, .resume = snd_es18xx_isa_resume, @@ -2271,25 +2220,16 @@ static int snd_audiodrive_pnp_detect(struct pnp_dev *pdev, if (err < 0) return err; err = snd_audiodrive_pnp(dev, card->private_data, pdev); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_audiodrive_probe(card, dev); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } pnp_set_drvdata(pdev, card); dev++; return 0; } -static void snd_audiodrive_pnp_remove(struct pnp_dev *pdev) -{ - snd_card_free(pnp_get_drvdata(pdev)); -} - #ifdef CONFIG_PM static int snd_audiodrive_pnp_suspend(struct pnp_dev *pdev, pm_message_t state) { @@ -2305,7 +2245,6 @@ static struct pnp_driver es18xx_pnp_driver = { .name = "es18xx-pnpbios", .id_table = snd_audiodrive_pnpbiosids, .probe = snd_audiodrive_pnp_detect, - .remove = snd_audiodrive_pnp_remove, #ifdef CONFIG_PM .suspend = snd_audiodrive_pnp_suspend, .resume = snd_audiodrive_pnp_resume, @@ -2331,27 +2270,17 @@ static int snd_audiodrive_pnpc_detect(struct pnp_card_link *pcard, return res; res = snd_audiodrive_pnpc(dev, card->private_data, pcard, pid); - if (res < 0) { - snd_card_free(card); + if (res < 0) return res; - } res = snd_audiodrive_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_audiodrive_pnpc_remove(struct pnp_card_link *pcard) -{ - snd_card_free(pnp_get_card_drvdata(pcard)); - pnp_set_card_drvdata(pcard, NULL); -} - #ifdef CONFIG_PM static int snd_audiodrive_pnpc_suspend(struct pnp_card_link *pcard, pm_message_t state) { @@ -2370,7 +2299,6 @@ static struct pnp_card_driver es18xx_pnpc_driver = { .name = "es18xx", .id_table = snd_audiodrive_pnpids, .probe = snd_audiodrive_pnpc_detect, - .remove = snd_audiodrive_pnpc_remove, #ifdef CONFIG_PM .suspend = snd_audiodrive_pnpc_suspend, .resume = snd_audiodrive_pnpc_resume, -- cgit