[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, 7 insertions, 2 deletions

diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 39211e58cd68..1ea3944ef7ab 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -259,6 +259,7 @@ struct snd_opti9xx {
 };
 
 static int snd_opti9xx_pnp_is_probed;
+static struct platform_device *snd_opti9xx_platform_device;
 
 #ifdef CONFIG_PNP
 
@@ -2095,8 +2096,10 @@ static int __init alsa_card_opti9xx_init(void)
                 if (error < 0)
                         return error;
                 device = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
-                if (! IS_ERR(device))
+                if (!IS_ERR(device)) {
+                        snd_opti9xx_platform_device = device;
                         return 0;
+                }
                 platform_driver_unregister(&snd_opti9xx_driver);
         }
         pnp_unregister_card_driver(&opti9xx_pnpc_driver);
@@ -2108,8 +2111,10 @@ static int __init alsa_card_opti9xx_init(void)
 
 static void __exit alsa_card_opti9xx_exit(void)
 {
-        if (! snd_opti9xx_pnp_is_probed)
+        if (!snd_opti9xx_pnp_is_probed) {
+                platform_device_unregister(snd_opti9xx_platform_device);
                 platform_driver_unregister(&snd_opti9xx_driver);
+        }
         pnp_unregister_card_driver(&opti9xx_pnpc_driver);
 }