diff options
Diffstat (limited to 'sound/isa/cmi8330.c')
| -rw-r--r-- | sound/isa/cmi8330.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c index ba0114ebafde..bd8e23818460 100644 --- a/sound/isa/cmi8330.c +++ b/sound/isa/cmi8330.c @@ -108,6 +108,9 @@ MODULE_PARM_DESC(wssirq, "IRQ # for CMI8330 WSS driver."); module_param_array(wssdma, int, NULL, 0444); MODULE_PARM_DESC(wssdma, "DMA for CMI8330 WSS driver."); +static struct platform_device *platform_devices[SNDRV_CARDS]; +static int pnp_registered; + #define CMI8330_RMUX3D 16 #define CMI8330_MUTEMUX 17 #define CMI8330_OUTPUTVOL 18 @@ -665,6 +668,17 @@ static struct pnp_card_driver cmi8330_pnpc_driver = { }; #endif /* CONFIG_PNP */ +static void __init_or_module snd_cmi8330_unregister_all(void) +{ + int i; + + if (pnp_registered) + pnp_unregister_card_driver(&cmi8330_pnpc_driver); + for (i = 0; i < ARRAY_SIZE(platform_devices); ++i) + platform_device_unregister(platform_devices[i]); + platform_driver_unregister(&snd_cmi8330_driver); +} + static int __init alsa_card_cmi8330_init(void) { int i, err, cards = 0; @@ -680,31 +694,35 @@ static int __init alsa_card_cmi8330_init(void) i, NULL, 0); if (IS_ERR(device)) { err = PTR_ERR(device); - platform_driver_unregister(&snd_cmi8330_driver); - return err; + goto errout; } + platform_devices[i] = device; cards++; } err = pnp_register_card_driver(&cmi8330_pnpc_driver); - if (err > 0) + if (err >= 0) { + pnp_registered = 1; cards += err; + } if (!cards) { - pnp_unregister_card_driver(&cmi8330_pnpc_driver); - platform_driver_unregister(&snd_cmi8330_driver); #ifdef MODULE snd_printk(KERN_ERR "CMI8330 not found or device busy\n"); #endif - return -ENODEV; + err = -ENODEV; + goto errout; } return 0; + + errout: + snd_cmi8330_unregister_all(); + return err; } static void __exit alsa_card_cmi8330_exit(void) { - pnp_unregister_card_driver(&cmi8330_pnpc_driver); - platform_driver_unregister(&snd_cmi8330_driver); + snd_cmi8330_unregister_all(); } module_init(alsa_card_cmi8330_init) |