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authorDavid S. Miller <davem@davemloft.net>2011-12-06 21:10:05 -0500
committerDavid S. Miller <davem@davemloft.net>2011-12-06 21:10:05 -0500
commit959327c7842e8621e28b89acea7d57ff02b60972 (patch)
treeb00de195fa401186228796abdcd16812862fbf4d /arch/x86/kernel/microcode_core.c
parentf84ea779c25dabc90956f1c329e5e5c501ea96cc (diff)
parentb835c0f47f725d864bf2545f10c733b754bb6d51 (diff)
downloadolio-linux-3.10-959327c7842e8621e28b89acea7d57ff02b60972.tar.xz
olio-linux-3.10-959327c7842e8621e28b89acea7d57ff02b60972.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/x86/kernel/microcode_core.c')
-rw-r--r--arch/x86/kernel/microcode_core.c28
1 files changed, 19 insertions, 9 deletions
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index f2d2a664e79..9d46f5e43b5 100644
--- 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);
}
@@ -519,10 +519,8 @@ 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);
@@ -532,14 +530,12 @@ 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_sysdev_driver;
register_syscore_ops(&mc_syscore_ops);
register_hotcpu_notifier(&mc_cpu_notifier);
@@ -548,6 +544,20 @@ static int __init microcode_init(void)
" <tigran@aivazian.fsnet.co.uk>, Peter Oruba\n");
return 0;
+
+out_sysdev_driver:
+ get_online_cpus();
+ mutex_lock(&microcode_mutex);
+
+ sysdev_driver_unregister(&cpu_sysdev_class, &mc_sysdev_driver);
+
+ mutex_unlock(&microcode_mutex);
+ put_online_cpus();
+
+out_pdev:
+ platform_device_unregister(microcode_pdev);
+ return error;
+
}
module_init(microcode_init);