[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>
diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 48743eb..61a323c 100644
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -92,6 +92,7 @@
MODULE_PARM_DESC(opl3sa3_ymode, "Speaker size selection for 3D Enhancement mode: Desktop/Large Notebook/Small Notebook/HiFi.");
#ifdef CONFIG_PNP
+static int isa_registered;
static int pnp_registered;
static int pnpc_registered;
#endif
@@ -967,17 +968,22 @@
int err;
err = isa_register_driver(&snd_opl3sa2_isa_driver, SNDRV_CARDS);
- if (err < 0)
- return err;
#ifdef CONFIG_PNP
+ if (!err)
+ isa_registered = 1;
+
err = pnp_register_driver(&opl3sa2_pnp_driver);
if (!err)
pnp_registered = 1;
+
err = pnp_register_card_driver(&opl3sa2_pnpc_driver);
if (!err)
pnpc_registered = 1;
+
+ if (isa_registered || pnp_registered)
+ err = 0;
#endif
- return 0;
+ return err;
}
static void __exit alsa_card_opl3sa2_exit(void)
@@ -987,8 +993,9 @@
pnp_unregister_card_driver(&opl3sa2_pnpc_driver);
if (pnp_registered)
pnp_unregister_driver(&opl3sa2_pnp_driver);
+ if (isa_registered)
#endif
- isa_unregister_driver(&snd_opl3sa2_isa_driver);
+ isa_unregister_driver(&snd_opl3sa2_isa_driver);
}
module_init(alsa_card_opl3sa2_init)