staging: tidspbridge: remove strm_init() and strm_exit()

The strm module has a strm_init() and a strm_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: Víctor Manuel Jáquez Leal <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

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

···
  *      -EPERM:      Failure occurred, unable to allocate buffers.
  *      -EINVAL:      usize must be > 0 bytes.
  *  Requires:
- *      strm_init(void) called.
  *      ap_buffer != NULL.
  *  Ensures:
  */
···
  *                      been reclaimed.
  *      -EPERM:      Failure to close stream.
  *  Requires:
- *      strm_init(void) called.
  *  Ensures:
  */
 extern int strm_close(struct strm_res_object *strmres,
···
  *      -ENOMEM:    Insufficient memory for requested resources.
  *      -EPERM:      General failure.
  *  Requires:
- *      strm_init(void) called.
  *      strm_man != NULL.
  *      dev_obj != NULL.
  *  Ensures:
···
  *      strm_mgr_obj:       Handle to STRM manager object from strm_create.
  *  Returns:
  *  Requires:
- *      strm_init(void) called.
  *      Valid strm_mgr_obj.
  *  Ensures:
  *      strm_mgr_obj is not valid.
  */
 extern void strm_delete(struct strm_mgr *strm_mgr_obj);
-
-/*
- *  ======== strm_exit ========
- *  Purpose:
- *      Discontinue usage of STRM module.
- *  Parameters:
- *  Returns:
- *  Requires:
- *      strm_init(void) successfully called before.
- *  Ensures:
- */
-extern void strm_exit(void);
 
 /*
  *  ======== strm_free_buffer ========
···
  *      -EFAULT:    Invalid stream handle.
  *      -EPERM:      Failure occurred, unable to free buffers.
  *  Requires:
- *      strm_init(void) called.
  *      ap_buffer != NULL.
  *  Ensures:
  */
···
  *      -EINVAL:          stream_info_size < sizeof(dsp_streaminfo).
  *      -EPERM:          Unable to get stream info.
  *  Requires:
- *      strm_init(void) called.
  *      stream_info != NULL.
  *  Ensures:
  */
···
  *      -ETIME:   A timeout occurred before the stream could be idled.
  *      -EPERM:      Unable to idle stream.
  *  Requires:
- *      strm_init(void) called.
  *  Ensures:
  */
 extern int strm_idle(struct strm_object *stream_obj, bool flush_data);
-
-/*
- *  ======== strm_init ========
- *  Purpose:
- *      Initialize the STRM module.
- *  Parameters:
- *  Returns:
- *      TRUE if initialization succeeded, FALSE otherwise.
- *  Requires:
- *  Ensures:
- */
-extern bool strm_init(void);
 
 /*
  *  ======== strm_issue ========
···
  *      -ENOSR:    The stream is full.
  *      -EPERM:          Failure occurred, unable to issue buffer.
  *  Requires:
- *      strm_init(void) called.
- *      pbuf != NULL.
+*      pbuf != NULL.
  *  Ensures:
  */
 extern int strm_issue(struct strm_object *stream_obj, u8 * pbuf,
···
  *              Unable to open stream.
  *      -EINVAL:     Invalid index.
  *  Requires:
- *      strm_init(void) called.
  *      strmres != NULL.
  *      pattr != NULL.
  *  Ensures:
···
  *                      retrieved.
  *      -EPERM:      Failure occurred, unable to reclaim buffer.
  *  Requires:
- *      strm_init(void) called.
  *      buf_ptr != NULL.
  *      nbytes != NULL.
  *      pdw_arg != NULL.
···
  *      -ENOSYS:   Notification type specified by notify_type is not
  *                      supported.
  *  Requires:
- *      strm_init(void) called.
  *      hnotification != NULL.
  *  Ensures:
  */
···
  *      -ETIME:   A timeout occurred before a stream became ready.
  *      -EPERM:      Failure occurred, unable to select a stream.
  *  Requires:
- *      strm_init(void) called.
  *      strm_tab != NULL.
  *      strms > 0.
  *      pmask != NULL.

drivers/staging/tidspbridge/pmgr/dspapi.c

···
 		chnl_exit();
 		msg_exit();
 		io_exit();
-		strm_exit();
 		mgr_exit();
 		rmm_exit();
 	}
···
 {
 	bool ret = true;
 	bool fdev, fchnl, fmsg, fio;
-	bool fmgr, fstrm, frmm;
+	bool fmgr, frmm;
 
 	if (api_c_refs == 0) {
 		/* initialize driver and other modules */
 		fmgr = mgr_init();
-		fstrm = strm_init();
 		frmm = rmm_init();
 		fchnl = chnl_init();
 		fmsg = msg_mod_init();
···
 
 			if (fmgr)
 				mgr_exit();
-
-			if (fstrm)
-				strm_exit();
 
 			if (fchnl)
 				chnl_exit();

drivers/staging/tidspbridge/rmgr/strm.c

···
 	struct cmm_xlatorobject *xlator;
 };
 
-/*  ----------------------------------- Globals */
-static u32 refs;		/* module reference count */
-
 /*  ----------------------------------- Function Prototypes */
 static int delete_strm(struct strm_object *stream_obj);
 
···
 }
 
 /*
- *  ======== strm_exit ========
- *  Purpose:
- *      Discontinue usage of STRM module.
- */
-void strm_exit(void)
-{
-	refs--;
-}
-
-/*
  *  ======== strm_free_buffer ========
  *  Purpose:
  *      Frees the buffers allocated for a stream.
···
 	dev_dbg(bridge, "%s: stream_obj: %p flush_data: 0x%x status: 0x%x\n",
 		__func__, stream_obj, flush_data, status);
 	return status;
-}
-
-/*
- *  ======== strm_init ========
- *  Purpose:
- *      Initialize the STRM module.
- */
-bool strm_init(void)
-{
-	bool ret = true;
-
-	if (ret)
-		refs++;
-
-	return ret;
 }
 
 /*