---

yaml --- r: 100374 b: refs/heads/master c: db26e64 h: refs/heads/master v: v3
git-mirror · Jul 2, 2008 · db6c3bc · db6c3bc
1 parent f35f85a
commit db6c3bc
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b691750098f830b748540cd955f5ac56545bab25
+refs/heads/master: db26e64dc3f0d51c4db1a625c248a81f7850eee9
diff --git a/trunk/kernel/pm_qos_params.c b/trunk/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;
 }