[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, 14 insertions, 2 deletions

diff --git a/sound/isa/gus/gusextreme.c b/sound/isa/gus/gusextreme.c
index 6fad9734a853..239f16e6b9ee 100644
--- a/sound/isa/gus/gusextreme.c
+++ b/sound/isa/gus/gusextreme.c
@@ -87,6 +87,8 @@ MODULE_PARM_DESC(channels, "GF1 channels for GUS Extreme driver.");
 module_param_array(pcm_channels, int, NULL, 0444);
 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Extreme driver.");
 
+struct platform_device *devices[SNDRV_CARDS];
+
 
 #define PFX     "gusextreme: "
 
@@ -337,6 +339,15 @@ static struct platform_driver snd_gusextreme_driver = {
         },
 };
 
+static void __init_or_module snd_gusextreme_unregister_all(void)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(devices); ++i)
+                platform_device_unregister(devices[i]);
+        platform_driver_unregister(&snd_gusextreme_driver);
+}
+
 static int __init alsa_card_gusextreme_init(void)
 {
         int i, cards, err;
@@ -354,6 +365,7 @@ static int __init alsa_card_gusextreme_init(void)
                         err = PTR_ERR(device);
                         goto errout;
                 }
+                devices[i] = device;
                 cards++;
         }
         if (!cards) {
@@ -366,13 +378,13 @@ static int __init alsa_card_gusextreme_init(void)
         return 0;
 
  errout:
-        platform_driver_unregister(&snd_gusextreme_driver);
+        snd_gusextreme_unregister_all();
         return err;
 }
 
 static void __exit alsa_card_gusextreme_exit(void)
 {
-        platform_driver_unregister(&snd_gusextreme_driver);
+        snd_gusextreme_unregister_all();
 }
 
 module_init(alsa_card_gusextreme_init)