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[ALSA] Fix probe of non-PnP ISA devices

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isa_register_driver() returns an error if no device is found
and it's no fatal error for the drivers with pnp support.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Rene Herman
2007-05-15 11:42:56 +02:00
committed by Jaroslav Kysela
parent 60af15f529
commit 609d769415
8 changed files with 94 additions and 47 deletions
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14
sound/isa/wavefront/wavefront.c
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@@ -86,6 +86,7 @@ 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)");
#ifdef CONFIG_PNP
static int isa_registered;
static int pnp_registered;
static struct pnp_card_device_id snd_wavefront_pnpids[] = {
@@ -706,14 +707,18 @@ static int __init alsa_card_wavefront_init(void)
int err;
err = isa_register_driver(&snd_wavefront_driver, SNDRV_CARDS);
if (err < 0)
return err;
#ifdef CONFIG_PNP
if (!err)
isa_registered = 1;
err = pnp_register_card_driver(&wavefront_pnpc_driver);
if (!err)
pnp_registered = 1;
if (isa_registered)
err = 0;
#endif
return 0;
return err;
}
static void __exit alsa_card_wavefront_exit(void)
@@ -721,8 +726,9 @@ static void __exit alsa_card_wavefront_exit(void)
#ifdef CONFIG_PNP
if (pnp_registered)
pnp_unregister_card_driver(&wavefront_pnpc_driver);
if (isa_registered)
#endif
isa_unregister_driver(&snd_wavefront_driver);
isa_unregister_driver(&snd_wavefront_driver);
}
module_init(alsa_card_wavefront_init)