diff options
Diffstat (limited to 'sound/oss/sb_card.c')
| -rw-r--r-- | sound/oss/sb_card.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/sound/oss/sb_card.c b/sound/oss/sb_card.c index 680b82e15298..4708cbdc3149 100644 --- a/sound/oss/sb_card.c +++ b/sound/oss/sb_card.c @@ -52,6 +52,7 @@ static int __initdata sm_games = 0; /* Logitech soundman games? */ static struct sb_card_config *legacy = NULL; #ifdef CONFIG_PNP +static int pnp_registered; static int __initdata pnp = 1; /* static int __initdata uart401 = 0; @@ -133,7 +134,7 @@ static void sb_unload(struct sb_card_config *scc) } /* Register legacy card with OSS subsystem */ -static int sb_init_legacy(void) +static int __init sb_init_legacy(void) { struct sb_module_options sbmo = {0}; @@ -234,6 +235,8 @@ static void sb_dev2cfg(struct pnp_dev *dev, struct sb_card_config *scc) } } +static unsigned int sb_pnp_devices; + /* Probe callback function for the PnP API */ static int sb_pnp_probe(struct pnp_card_link *card, const struct pnp_card_device_id *card_id) { @@ -264,6 +267,7 @@ static int sb_pnp_probe(struct pnp_card_link *card, const struct pnp_card_device scc->conf.dma, scc->conf.dma2); pnp_set_card_drvdata(card, scc); + sb_pnp_devices++; return sb_register_oss(scc, &sbmo); } @@ -289,6 +293,14 @@ static struct pnp_card_driver sb_pnp_driver = { MODULE_DEVICE_TABLE(pnp_card, sb_pnp_card_table); #endif /* CONFIG_PNP */ +static void __init_or_module sb_unregister_all(void) +{ +#ifdef CONFIG_PNP + if (pnp_registered) + pnp_unregister_card_driver(&sb_pnp_driver); +#endif +} + static int __init sb_init(void) { int lres = 0; @@ -307,17 +319,18 @@ static int __init sb_init(void) #ifdef CONFIG_PNP if(pnp) { - pres = pnp_register_card_driver(&sb_pnp_driver); + int err = pnp_register_card_driver(&sb_pnp_driver); + if (!err) + pnp_registered = 1; + pres = sb_pnp_devices; } #endif printk(KERN_INFO "sb: Init: Done\n"); /* If either PnP or Legacy registered a card then return * success */ - if (pres <= 0 && lres <= 0) { -#ifdef CONFIG_PNP - pnp_unregister_card_driver(&sb_pnp_driver); -#endif + if (pres == 0 && lres <= 0) { + sb_unregister_all(); return -ENODEV; } return 0; @@ -333,14 +346,10 @@ static void __exit sb_exit(void) sb_unload(legacy); } -#ifdef CONFIG_PNP - pnp_unregister_card_driver(&sb_pnp_driver); -#endif + sb_unregister_all(); - if (smw_free) { - vfree(smw_free); - smw_free = NULL; - } + vfree(smw_free); + smw_free = NULL; } module_init(sb_init); |