PM / sleep: Make pm_prepare_console() return void

Nothing is using its return value so change it to return void.

No functionality change.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 8b6ec7e..7693e39 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -18,12 +18,11 @@
 #endif
 
 #ifdef CONFIG_VT_CONSOLE_SLEEP
-extern int pm_prepare_console(void);
+extern void pm_prepare_console(void);
 extern void pm_restore_console(void);
 #else
-static inline int pm_prepare_console(void)
+static inline void pm_prepare_console(void)
 {
-	return 0;
 }
 
 static inline void pm_restore_console(void)