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| author | Jeff Garzik <jeff@garzik.org> | 2006-07-29 00:28:36 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-07-29 00:28:36 -0400 |
| commit | 572e432e01c1f7c64ad8375a6e0d935b0e40ebf5 (patch) | |
| tree | 57ae4168e9bf4c88a1267f4ec6c96df3789cc9cc /drivers/cpufreq/cpufreq_userspace.c | |
| parent | d11ea48aab3b57cc931cc7120603e1c2ffb04302 (diff) | |
| parent | e3f2ddeac718c768fdac4b7fe69d465172f788a8 (diff) | |
Merge branch 'master' into upstream
Diffstat (limited to 'drivers/cpufreq/cpufreq_userspace.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_userspace.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c index 44ae5e5b94c..a06c204589c 100644 --- a/drivers/cpufreq/cpufreq_userspace.c +++ b/drivers/cpufreq/cpufreq_userspace.c @@ -18,6 +18,7 @@ #include <linux/spinlock.h> #include <linux/interrupt.h> #include <linux/cpufreq.h> +#include <linux/cpu.h> #include <linux/types.h> #include <linux/fs.h> #include <linux/sysfs.h> @@ -70,6 +71,7 @@ static int cpufreq_set(unsigned int freq, struct cpufreq_policy *policy) dprintk("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq); + lock_cpu_hotplug(); mutex_lock(&userspace_mutex); if (!cpu_is_managed[policy->cpu]) goto err; @@ -92,6 +94,7 @@ static int cpufreq_set(unsigned int freq, struct cpufreq_policy *policy) err: mutex_unlock(&userspace_mutex); + unlock_cpu_hotplug(); return ret; } |