1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/pm.h b/include/linux/pm.h
index 658c1b93d5bb..096fb6f754cf 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -190,6 +190,7 @@ extern void device_resume(void);
 extern suspend_disk_method_t pm_disk_mode;
 
 extern int device_suspend(pm_message_t state);
+extern int device_prepare_suspend(pm_message_t state);
 
 #define device_set_wakeup_enable(dev,val) \
         ((dev)->power.should_wakeup = !!(val))