Merge branch 'powercap'

* powercap:
  powercap/drivers/dtpm: Add the experimental label to the option description
  powercap/drivers/dtpm: Fix root node initialization

drivers/powercap/Kconfig

@@ -45,7 +45,7 @@ config IDLE_INJECT
 	  on a per CPU basis.
 
 config DTPM
-	bool "Power capping for Dynamic Thermal Power Management"
+	bool "Power capping for Dynamic Thermal Power Management (EXPERIMENTAL)"
 	help
 	  This enables support for the power capping for the dynamic
 	  thermal power management userspace engine.

drivers/powercap/dtpm.c

@@ -207,6 +207,9 @@ int dtpm_release_zone(struct powercap_zone *pcz)
 	if (dtpm->ops)
 		dtpm->ops->release(dtpm);
 
+	if (root == dtpm)
+		root = NULL;
+
 	kfree(dtpm);
 
 	return 0;