staging: tidspbridge: remove msg_mod_init() and msg_exit()

The msg module has a msg_mod_init() and a msg_exit() whose only
purpose is to keep a reference counting which is not used at all.

This patch removes these functions and the reference count variable.

There is no functional changes.
Signed-off-by: NVíctor Manuel Jáquez Leal <vjaquez@igalia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/tidspbridge/include/dspbridge/msg.h

@@ -34,7 +34,6 @@
  *      msg_callback:        Called whenever an RMS_EXIT message is received.
  *  Returns:
  *  Requires:
- *      msg_mod_init(void) called.
  *      msg_man != NULL.
  *      hdev_obj != NULL.
  *      msg_callback != NULL.
@@ -52,35 +51,9 @@ extern int msg_create(struct msg_mgr **msg_man,
  *      hmsg_mgr:            Handle returned from msg_create().
  *  Returns:
  *  Requires:
- *      msg_mod_init(void) called.
  *      Valid hmsg_mgr.
  *  Ensures:
  */
 extern void msg_delete(struct msg_mgr *hmsg_mgr);
 
-/*
- *  ======== msg_exit ========
- *  Purpose:
- *      Discontinue usage of msg_ctrl module.
- *  Parameters:
- *  Returns:
- *  Requires:
- *      msg_mod_init(void) successfully called before.
- *  Ensures:
- *      Any resources acquired in msg_mod_init(void) will be freed when last
- *      msg_ctrl client calls msg_exit(void).
- */
-extern void msg_exit(void);
-
-/*
- *  ======== msg_mod_init ========
- *  Purpose:
- *      Initialize the msg_ctrl module.
- *  Parameters:
- *  Returns:
- *      TRUE if initialization succeeded, FALSE otherwise.
- *  Ensures:
- */
-extern bool msg_mod_init(void);
-
 #endif /* MSG_ */

drivers/staging/tidspbridge/pmgr/dspapi.c

@@ -268,7 +268,6 @@ void api_exit(void)
 	if (api_c_refs == 0) {
 		/* Release all modules initialized in api_init(). */
 		dev_exit();
-		msg_exit();
 		io_exit();
 		mgr_exit();
 	}
@@ -282,25 +281,21 @@ void api_exit(void)
 bool api_init(void)
 {
 	bool ret = true;
-	bool fdev, fmsg, fio;
+	bool fdev, fio;
 	bool fmgr;
 
 	if (api_c_refs == 0) {
 		/* initialize driver and other modules */
 		fmgr = mgr_init();
-		fmsg = msg_mod_init();
 		fio = io_init();
 		fdev = dev_init();
-		ret = fdev && fmsg && fio;
+		ret = fdev && fio;
 		ret = ret && fmgr;
 		if (!ret) {
 
 			if (fmgr)
 				mgr_exit();
 
-			if (fmsg)
-				msg_exit();
-
 			if (fio)
 				io_exit();
 

drivers/staging/tidspbridge/pmgr/msg.c

@@ -33,9 +33,6 @@
 #include <msgobj.h>
 #include <dspbridge/msg.h>
 
-/*  ----------------------------------- Globals */
-static u32 refs;		/* module reference count */
-
 /*
  *  ======== msg_create ========
  *  Purpose:
@@ -92,21 +89,3 @@ void msg_delete(struct msg_mgr *hmsg_mgr)
 			__func__, hmsg_mgr);
 	}
 }
-
-/*
- *  ======== msg_exit ========
- */
-void msg_exit(void)
-{
-	refs--;
-}
-
-/*
- *  ======== msg_mod_init ========
- */
-bool msg_mod_init(void)
-{
-	refs++;
-
-	return true;
-}