added some doxygen comments to common/system.h; cleaned up the OSystem interface a bit

svn-id: r8116

2 files changed, 4 insertions, 4 deletions

diff --git a/backends/sdl/sdl-common.cpp b/backends/sdl/sdl-common.cpp
index 78820dc27b..f9096c098c 100644
--- a/backends/sdl/sdl-common.cpp
+++ b/backends/sdl/sdl-common.cpp
@@ -496,8 +496,8 @@ void OSystem_SDL_Common::delay_msecs(uint msecs) {
 	SDL_Delay(msecs);
 }
 
-void *OSystem_SDL_Common::create_thread(ThreadProc *proc, void *param) {
-	return SDL_CreateThread(proc, param);
+void OSystem_SDL_Common::create_thread(ThreadProc *proc, void *param) {
+	SDL_CreateThread(proc, param);
 }
 
 static int mapKey(SDLKey key, SDLMod mod, Uint16 unicode)
diff --git a/backends/sdl/sdl-common.h b/backends/sdl/sdl-common.h
index 5ce2166c79..71a44d46f6 100644
--- a/backends/sdl/sdl-common.h
+++ b/backends/sdl/sdl-common.h
@@ -71,7 +71,7 @@ public:
 	void delay_msecs(uint msecs);
 
 	// Create a thread
-	void *create_thread(ThreadProc *proc, void *param);
+	void create_thread(ThreadProc *proc, void *param);
 
 	// Get the next event.
 	// Returns true if an event was retrieved.	
@@ -103,7 +103,7 @@ public:
 	void set_timer(int timer, int (*callback)(int));
 
 	// Mutex handling
-	void *create_mutex(void);
+	void *create_mutex();
 	void lock_mutex(void *mutex);
 	void unlock_mutex(void *mutex);
 	void delete_mutex(void *mutex);