[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/drivers/virmidi.c b/sound/drivers/virmidi.c
index 9f36a64..4258723 100644
--- a/sound/drivers/virmidi.c
+++ b/sound/drivers/virmidi.c
@@ -82,6 +82,8 @@
struct snd_rawmidi *midi[MAX_MIDI_DEVICES];
};
+static struct platform_device *devices[SNDRV_CARDS];
+
static int __init snd_virmidi_probe(struct platform_device *devptr)
{
@@ -144,6 +146,15 @@
},
};
+static void __init_or_module snd_virmidi_unregister_all(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(devices); ++i)
+ platform_device_unregister(devices[i]);
+ platform_driver_unregister(&snd_virmidi_driver);
+}
+
static int __init alsa_card_virmidi_init(void)
{
int i, cards, err;
@@ -160,6 +171,7 @@
err = PTR_ERR(device);
goto errout;
}
+ devices[i] = device;
cards++;
}
if (!cards) {
@@ -172,13 +184,13 @@
return 0;
errout:
- platform_driver_unregister(&snd_virmidi_driver);
+ snd_virmidi_unregister_all();
return err;
}
static void __exit alsa_card_virmidi_exit(void)
{
- platform_driver_unregister(&snd_virmidi_driver);
+ snd_virmidi_unregister_all();
}
module_init(alsa_card_virmidi_init)