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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:39:59 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:39:59 +0200 |
| commit | 0679c2f47d50651018dd5e0bf35330f6e6ae35ec (patch) | |
| tree | 2df65ebb958f930abf0b7ad35fd6e528398b1679 /kernel/pm_qos_params.c | |
| parent | 76fbc263ff7e42ce8b21b8aee176e3c74b45f81a (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
Merge branch 'linus' into pci-for-jesse
Diffstat (limited to 'kernel/pm_qos_params.c')
| -rw-r--r-- | kernel/pm_qos_params.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c index 0afe32be4c8..8cb75702638 100644 --- a/kernel/pm_qos_params.c +++ b/kernel/pm_qos_params.c @@ -29,6 +29,7 @@ #include <linux/pm_qos_params.h> #include <linux/sched.h> +#include <linux/smp_lock.h> #include <linux/spinlock.h> #include <linux/slab.h> #include <linux/time.h> @@ -358,15 +359,19 @@ static int pm_qos_power_open(struct inode *inode, struct file *filp) int ret; long pm_qos_class; + lock_kernel(); pm_qos_class = find_pm_qos_object_by_minor(iminor(inode)); if (pm_qos_class >= 0) { filp->private_data = (void *)pm_qos_class; sprintf(name, "process_%d", current->pid); ret = pm_qos_add_requirement(pm_qos_class, name, PM_QOS_DEFAULT_VALUE); - if (ret >= 0) + if (ret >= 0) { + unlock_kernel(); return 0; + } } + unlock_kernel(); return -EPERM; } |