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[ALSA] unregister platform devices

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Call platform_device_unregister() for all platform devices that we've
registered.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
This commit is contained in:
Clemens Ladisch
2005-12-07 09:13:42 +01:00
committed by Jaroslav Kysela
parent 416c1079d3
commit f7a9275d94
24 changed files with 415 additions and 111 deletions
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35
sound/isa/wavefront/wavefront.c
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@@ -83,6 +83,9 @@ MODULE_PARM_DESC(fm_port, "FM port #.");
module_param_array(use_cs4232_midi, bool, NULL, 0444);
MODULE_PARM_DESC(use_cs4232_midi, "Use CS4232 MPU-401 interface (inaccessibly located inside your computer)");
static struct platform_device *platform_devices[SNDRV_CARDS];
static int pnp_registered;
#ifdef CONFIG_PNP
@@ -688,6 +691,17 @@ static struct pnp_card_driver wavefront_pnpc_driver = {
#endif /* CONFIG_PNP */
static void __init_or_module snd_wavefront_unregister_all(void)
{
int i;
if (pnp_registered)
pnp_unregister_card_driver(&wavefront_pnpc_driver);
for (i = 0; i < ARRAY_SIZE(platform_devices); ++i)
platform_device_unregister(platform_devices[i]);
platform_driver_unregister(&snd_wavefront_driver);
}
static int __init alsa_card_wavefront_init(void)
{
int i, err, cards = 0;
@@ -704,31 +718,36 @@ static int __init alsa_card_wavefront_init(void)
device = platform_device_register_simple(WAVEFRONT_DRIVER,
i, NULL, 0);
if (IS_ERR(device)) {
platform_driver_unregister(&snd_wavefront_driver);
return PTR_ERR(device);
err = PTR_ERR(device);
goto errout;
}
platform_devices[i] = device;
cards++;
}
i = pnp_register_card_driver(&wavefront_pnpc_driver);
if (i > 0)
if (i >= 0) {
pnp_registered = 1;
cards += i;
}
if (!cards) {
pnp_unregister_card_driver(&wavefront_pnpc_driver);
platform_driver_unregister(&snd_wavefront_driver);
#ifdef MODULE
printk (KERN_ERR "No WaveFront cards found or devices busy\n");
#endif
return -ENODEV;
err = -ENODEV;
goto errout;
}
return 0;
errout:
snd_wavefront_unregister_all();
return err;
}
static void __exit alsa_card_wavefront_exit(void)
{
pnp_unregister_card_driver(&wavefront_pnpc_driver);
platform_driver_unregister(&snd_wavefront_driver);
snd_wavefront_unregister_all();
}
module_init(alsa_card_wavefront_init)