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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/sscape.c
parent60af15f529d22a93805e74dd3c52b6f8134511d2 (diff)
downloadlinux-609d7694152f85734560ddc83be5e551b34d8c44.tar.gz
[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/sscape.c')
-rw-r--r--sound/isa/sscape.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index 08c14978558c..9ea417bcf3e5 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -69,7 +69,9 @@ module_param_array(dma, int, NULL, 0444);
MODULE_PARM_DESC(dma, "DMA # for SoundScape driver.");
#ifdef CONFIG_PNP
+static int isa_registered;
static int pnp_registered;
+
static struct pnp_card_device_id sscape_pnpids[] = {
{ .id = "ENS3081", .devs = { { "ENS0000" } } },
{ .id = "" } /* end */
@@ -1405,22 +1407,21 @@ static struct pnp_card_driver sscape_pnpc_driver = {
static int __init sscape_init(void)
{
- int ret;
+ int err;
- /*
- * First check whether we were passed any parameters.
- * These MUST take precedence over ANY automatic way
- * of allocating cards, because the operator is
- * S-P-E-L-L-I-N-G it out for us...
- */
- ret = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS);
- if (ret < 0)
- return ret;
+ err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS);
#ifdef CONFIG_PNP
- if (pnp_register_card_driver(&sscape_pnpc_driver) == 0)
+ if (!err)
+ isa_registered = 1;
+
+ err = pnp_register_card_driver(&sscape_pnpc_driver);
+ if (!err)
pnp_registered = 1;
+
+ if (isa_registered)
+ err = 0;
#endif
- return 0;
+ return err;
}
static void __exit sscape_exit(void)
@@ -1428,8 +1429,9 @@ static void __exit sscape_exit(void)
#ifdef CONFIG_PNP
if (pnp_registered)
pnp_unregister_card_driver(&sscape_pnpc_driver);
+ if (isa_registered)
#endif
- isa_unregister_driver(&snd_sscape_driver);
+ isa_unregister_driver(&snd_sscape_driver);
}
module_init(sscape_init);