[ALSA] unregister platform devices
Call platform_device_unregister() for all platform devices that we've
registered.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
index 34d4713..bf5de07 100644
--- a/sound/isa/es18xx.c
+++ b/sound/isa/es18xx.c
@@ -1877,6 +1877,9 @@
module_param_array(dma2, int, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA 2 # for ES18xx driver.");
+static struct platform_device *platform_devices[SNDRV_CARDS];
+static int pnp_registered;
+
#ifdef CONFIG_PNP
static struct pnp_card_device_id snd_audiodrive_pnpids[] = {
@@ -2202,6 +2205,17 @@
};
#endif /* CONFIG_PNP */
+static void __init_or_module snd_es18xx_unregister_all(void)
+{
+ int i;
+
+ if (pnp_registered)
+ pnp_unregister_card_driver(&es18xx_pnpc_driver);
+ for (i = 0; i < ARRAY_SIZE(platform_devices); ++i)
+ platform_device_unregister(platform_devices[i]);
+ platform_driver_unregister(&snd_es18xx_nonpnp_driver);
+}
+
static int __init alsa_card_es18xx_init(void)
{
int i, err, cards = 0;
@@ -2217,31 +2231,35 @@
i, NULL, 0);
if (IS_ERR(device)) {
err = PTR_ERR(device);
- platform_driver_unregister(&snd_es18xx_nonpnp_driver);
- return err;
+ goto errout;
}
+ platform_devices[i] = device;
cards++;
}
i = pnp_register_card_driver(&es18xx_pnpc_driver);
- if (i > 0)
+ if (i >= 0) {
+ pnp_registered = 1;
cards += i;
+ }
if(!cards) {
- pnp_unregister_card_driver(&es18xx_pnpc_driver);
- platform_driver_unregister(&snd_es18xx_nonpnp_driver);
#ifdef MODULE
snd_printk(KERN_ERR "ESS AudioDrive ES18xx soundcard not found or device busy\n");
#endif
- return -ENODEV;
+ err = -ENODEV;
+ goto errout;
}
return 0;
+
+ errout:
+ snd_es18xx_unregister_all();
+ return err;
}
static void __exit alsa_card_es18xx_exit(void)
{
- pnp_unregister_card_driver(&es18xx_pnpc_driver);
- platform_driver_unregister(&snd_es18xx_nonpnp_driver);
+ snd_es18xx_unregister_all();
}
module_init(alsa_card_es18xx_init)