diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2005-12-07 09:13:42 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:30:39 +0100 |
| commit | f7a9275d949cb0bf1f259a1546e52a0bf518151c (patch) | |
| tree | 4d96d9b6196d43684903857ba676dc51bbde4026 /sound/isa/sb/sb16.c | |
| parent | 416c1079d30f1a52399b96f6772e993274b774ae (diff) | |
[ALSA] unregister platform devices
Call platform_device_unregister() for all platform devices that we've
registered.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/isa/sb/sb16.c')
| -rw-r--r-- | sound/isa/sb/sb16.c | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/sound/isa/sb/sb16.c b/sound/isa/sb/sb16.c index 05816c5d829a..c0be7a5a3425 100644 --- a/sound/isa/sb/sb16.c +++ b/sound/isa/sb/sb16.c @@ -128,6 +128,11 @@ module_param_array(seq_ports, int, NULL, 0444); MODULE_PARM_DESC(seq_ports, "Number of sequencer ports for WaveTable synth."); #endif +static struct platform_device *platform_devices[SNDRV_CARDS]; +#ifdef CONFIG_PNP +static int pnp_registered; +#endif + struct snd_card_sb16 { struct resource *fm_res; /* used to block FM i/o region for legacy cards */ struct snd_sb *chip; @@ -687,6 +692,19 @@ static struct pnp_card_driver sb16_pnpc_driver = { #endif /* CONFIG_PNP */ +static void __init_or_module snd_sb16_unregister_all(void) +{ + int i; + +#ifdef CONFIG_PNP + if (pnp_registered) + pnp_unregister_card_driver(&sb16_pnpc_driver); +#endif + for (i = 0; i < ARRAY_SIZE(platform_devices); ++i) + platform_device_unregister(platform_devices[i]); + platform_driver_unregister(&snd_sb16_nonpnp_driver); +} + static int __init alsa_card_sb16_init(void) { int i, err, cards = 0; @@ -702,23 +720,21 @@ static int __init alsa_card_sb16_init(void) i, NULL, 0); if (IS_ERR(device)) { err = PTR_ERR(device); - platform_driver_unregister(&snd_sb16_nonpnp_driver); - return err; + goto errout; } + platform_devices[i] = device; cards++; } #ifdef CONFIG_PNP /* PnP cards at last */ i = pnp_register_card_driver(&sb16_pnpc_driver); - if (i > 0) + if (i >= 0) { + pnp_registered = 1; cards += i; + } #endif if (!cards) { -#ifdef CONFIG_PNP - pnp_unregister_card_driver(&sb16_pnpc_driver); -#endif - platform_driver_unregister(&snd_sb16_nonpnp_driver); #ifdef MODULE snd_printk(KERN_ERR "Sound Blaster 16 soundcard not found or device busy\n"); #ifdef SNDRV_SBAWE_EMU8000 @@ -727,17 +743,19 @@ static int __init alsa_card_sb16_init(void) snd_printk(KERN_ERR "In case, if you have AWE card, try snd-sbawe module\n"); #endif #endif - return -ENODEV; + err = -ENODEV; + goto errout; } return 0; + + errout: + snd_sb16_unregister_all(); + return err; } static void __exit alsa_card_sb16_exit(void) { -#ifdef CONFIG_PNP - pnp_unregister_card_driver(&sb16_pnpc_driver); -#endif - platform_driver_unregister(&snd_sb16_nonpnp_driver); + snd_sb16_unregister_all(); } module_init(alsa_card_sb16_init) |