This patch converts the card object management with devres as a clean up. The remove callback gets reduced by that.
This should give no user-visible functional changes.
Note that this converts only the mpu401 card driver. The mpu401_uart component is still managed with snd_device. It's for the case where the mpu401_uart component may be removed dynamically without the actual device unbind.
Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/drivers/mpu401/mpu401.c | 33 +++++---------------------------- 1 file changed, 5 insertions(+), 28 deletions(-)
diff --git a/sound/drivers/mpu401/mpu401.c b/sound/drivers/mpu401/mpu401.c index d0b55dbb411a..66b94f73956f 100644 --- a/sound/drivers/mpu401/mpu401.c +++ b/sound/drivers/mpu401/mpu401.c @@ -59,8 +59,8 @@ static int snd_mpu401_create(struct device *devptr, int dev, snd_printk(KERN_ERR "the uart_enter option is obsolete; remove it\n");
*rcard = NULL; - err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE, - 0, &card); + err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE, + 0, &card); if (err < 0) return err; strcpy(card->driver, "MPU-401 UART"); @@ -76,15 +76,11 @@ static int snd_mpu401_create(struct device *devptr, int dev, irq[dev], NULL); if (err < 0) { printk(KERN_ERR "MPU401 not detected at 0x%lx\n", port[dev]); - goto _err; + return err; }
*rcard = card; return 0; - - _err: - snd_card_free(card); - return err; }
static int snd_mpu401_probe(struct platform_device *devptr) @@ -105,20 +101,12 @@ static int snd_mpu401_probe(struct platform_device *devptr) if (err < 0) return err; err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } platform_set_drvdata(devptr, card); return 0; }
-static int snd_mpu401_remove(struct platform_device *devptr) -{ - snd_card_free(platform_get_drvdata(devptr)); - return 0; -} - #define SND_MPU401_DRIVER "snd_mpu401"
static struct platform_driver snd_mpu401_driver = { @@ -184,10 +172,8 @@ static int snd_mpu401_pnp_probe(struct pnp_dev *pnp_dev, if (err < 0) return err; err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } pnp_set_drvdata(pnp_dev, card); snd_mpu401_devices++; ++dev; @@ -196,19 +182,10 @@ static int snd_mpu401_pnp_probe(struct pnp_dev *pnp_dev, return -ENODEV; }
-static void snd_mpu401_pnp_remove(struct pnp_dev *dev) -{ - struct snd_card *card = (struct snd_card *) pnp_get_drvdata(dev); - - snd_card_disconnect(card); - snd_card_free_when_closed(card); -} - static struct pnp_driver snd_mpu401_pnp_driver = { .name = "mpu401", .id_table = snd_mpu401_pnpids, .probe = snd_mpu401_pnp_probe, - .remove = snd_mpu401_pnp_remove, }; #else static struct pnp_driver snd_mpu401_pnp_driver;