From f7a9275d949cb0bf1f259a1546e52a0bf518151c Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Wed, 7 Dec 2005 09:13:42 +0100 Subject: [ALSA] unregister platform devices Call platform_device_unregister() for all platform devices that we've registered. Signed-off-by: Clemens Ladisch --- sound/isa/wavefront/wavefront.c | 35 +++++++++++++++++++++++++++-------- 1 file changed, 27 insertions(+), 8 deletions(-) (limited to 'sound/isa/wavefront') diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c index 77a3012e5510..a6dcb2f970ca 100644 --- a/sound/isa/wavefront/wavefront.c +++ b/sound/isa/wavefront/wavefront.c @@ -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) -- cgit v1.2.3-59-g8ed1b