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authorRene Herman <rene.herman@gmail.com>2007-05-15 11:42:56 +0200
committerJaroslav Kysela <perex@suse.cz>2007-05-16 12:22:44 +0200
commit609d7694152f85734560ddc83be5e551b34d8c44 (patch)
tree14334de027169b2549933ff56cb1fd78e3bd41d6 /sound/isa/wavefront
parent60af15f529d22a93805e74dd3c52b6f8134511d2 (diff)
downloadlinux-609d7694152f85734560ddc83be5e551b34d8c44.tar.bz2
[ALSA] Fix probe of non-PnP ISA devices
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>
Diffstat (limited to 'sound/isa/wavefront')
-rw-r--r--sound/isa/wavefront/wavefront.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c
index 75673f723857..83c2fc4cfc64 100644
--- a/sound/isa/wavefront/wavefront.c
+++ b/sound/isa/wavefront/wavefront.c
@@ -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)