diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-23 14:50:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-23 14:50:15 -0700 |
| commit | 0737c8d7aedfe590010e38c3e3bbdc87affa8c3d (patch) | |
| tree | e3feeb7183c149591dfd89b695baef6bf5218ea9 /drivers/hwmon/coretemp.c | |
| parent | 0bf7a7056c7b39502008feb484b95a5877cdf59d (diff) | |
| parent | 5f0ecb907deb1e6f28071ee3bd568903b9da1be4 (diff) | |
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon subsystem fixes from Jean Delvare.
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (fam15h_power) Tweak runavg_range on resume
hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug
hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug
Diffstat (limited to 'drivers/hwmon/coretemp.c')
| -rw-r--r-- | drivers/hwmon/coretemp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 0fa356fe82cc..984a3f13923b 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -815,17 +815,20 @@ static int __init coretemp_init(void) if (err) goto exit; + get_online_cpus(); for_each_online_cpu(i) get_core_online(i); #ifndef CONFIG_HOTPLUG_CPU if (list_empty(&pdev_list)) { + put_online_cpus(); err = -ENODEV; goto exit_driver_unreg; } #endif register_hotcpu_notifier(&coretemp_cpu_notifier); + put_online_cpus(); return 0; #ifndef CONFIG_HOTPLUG_CPU @@ -840,6 +843,7 @@ static void __exit coretemp_exit(void) { struct pdev_entry *p, *n; + get_online_cpus(); unregister_hotcpu_notifier(&coretemp_cpu_notifier); mutex_lock(&pdev_list_mutex); list_for_each_entry_safe(p, n, &pdev_list, list) { @@ -848,6 +852,7 @@ static void __exit coretemp_exit(void) kfree(p); } mutex_unlock(&pdev_list_mutex); + put_online_cpus(); platform_driver_unregister(&coretemp_driver); } |