[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/es18xx.c b/sound/isa/es18xx.c
index d2a9c7d..f7732bf 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -2036,7 +2036,9 @@
MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
#ifdef CONFIG_PNP
-static int pnp_registered, pnpc_registered;
+static int isa_registered;
+static int pnp_registered;
+static int pnpc_registered;
static struct pnp_device_id snd_audiodrive_pnpbiosids[] = {
{ .id = "ESS1869" },
@@ -2466,18 +2468,22 @@
int err;
err = isa_register_driver(&snd_es18xx_isa_driver, SNDRV_CARDS);
- if (err < 0)
- return err;
-
#ifdef CONFIG_PNP
+ if (!err)
+ isa_registered = 1;
+
err = pnp_register_driver(&es18xx_pnp_driver);
if (!err)
pnp_registered = 1;
+
err = pnp_register_card_driver(&es18xx_pnpc_driver);
if (!err)
pnpc_registered = 1;
+
+ if (isa_registered || pnp_registered)
+ err = 0;
#endif
- return 0;
+ return err;
}
static void __exit alsa_card_es18xx_exit(void)
@@ -2487,8 +2493,9 @@
pnp_unregister_card_driver(&es18xx_pnpc_driver);
if (pnp_registered)
pnp_unregister_driver(&es18xx_pnp_driver);
+ if (isa_registered)
#endif
- isa_unregister_driver(&snd_es18xx_isa_driver);
+ isa_unregister_driver(&snd_es18xx_isa_driver);
}
module_init(alsa_card_es18xx_init)