[ALSA] unregister platform devices

Call platform_device_unregister() for all platform devices that we've
registered.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c
index d9c4e224fa5f..b7a0b42813e1 100644
--- a/sound/drivers/mtpav.c
+++ b/sound/drivers/mtpav.c
@@ -95,6 +95,8 @@ MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI.");
 module_param(hwports, int, 0444);
 MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI.");
 
+static struct platform_device *device;
+
 /*
  *      defines
  */
@@ -763,7 +765,6 @@ static struct platform_driver snd_mtpav_driver = {
 static int __init alsa_card_mtpav_init(void)
 {
         int err;
-        struct platform_device *device;
 
         if ((err = platform_driver_register(&snd_mtpav_driver)) < 0)
                 return err;
@@ -778,6 +779,7 @@ static int __init alsa_card_mtpav_init(void)
 
 static void __exit alsa_card_mtpav_exit(void)
 {
+        platform_device_unregister(device);
         platform_driver_unregister(&snd_mtpav_driver);
 }