Merge branch 'driver-core-next' into Linux 3.2

[linux.git] / arch / x86 / kernel / microcode_core.c

diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index cf88f2a164735e05ccf88d77ba37d54e5979910f..c6aa7eb6cda40a0200b9657cfd6aabce476cfa3c 100644 (file)
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -256,7 +256,7 @@ static int __init microcode_dev_init(void)
        return 0;
 }
 
-static void microcode_dev_exit(void)
+static void __exit microcode_dev_exit(void)
 {
        misc_deregister(&microcode_dev);
 }
@@ -521,10 +521,8 @@ static int __init microcode_init(void)
 
        microcode_pdev = platform_device_register_simple("microcode", -1,
                                                         NULL, 0);
-       if (IS_ERR(microcode_pdev)) {
-               microcode_dev_exit();
+       if (IS_ERR(microcode_pdev))
                return PTR_ERR(microcode_pdev);
-       }
 
        get_online_cpus();
        mutex_lock(&microcode_mutex);
@@ -534,14 +532,12 @@ static int __init microcode_init(void)
        mutex_unlock(&microcode_mutex);
        put_online_cpus();
 
-       if (error) {
-               platform_device_unregister(microcode_pdev);
-               return error;
-       }
+       if (error)
+               goto out_pdev;
 
        error = microcode_dev_init();
        if (error)
-               return error;
+               goto out_driver;
 
        register_syscore_ops(&mc_syscore_ops);
        register_hotcpu_notifier(&mc_cpu_notifier);
@@ -550,6 +546,20 @@ static int __init microcode_init(void)
                " <tigran@aivazian.fsnet.co.uk>, Peter Oruba\n");
 
        return 0;
+
+out_driver:
+       get_online_cpus();
+       mutex_lock(&microcode_mutex);
+
+       subsys_interface_unregister(&mc_cpu_interface);
+
+       mutex_unlock(&microcode_mutex);
+       put_online_cpus();
+
+out_pdev:
+       platform_device_unregister(microcode_pdev);
+       return error;
+
 }
 module_init(microcode_init);