staging: tidspbridge: remove drv_init() and drv_exit()

The drv module has a drv_init() and a drv_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 <vjaquez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

@@ -198,17 +198,6 @@ extern int drv_create(struct drv_object **drv_obj);
  */
 extern int drv_destroy(struct drv_object *driver_obj);
 
-/*
- *  ======== drv_exit ========
- *  Purpose:
- *      Exit the DRV module, freeing any modules initialized in drv_init.
- *  Parameters:
- *  Returns:
- *  Requires:
- *  Ensures:
- */
-extern void drv_exit(void);
-
 /*
  *  ======== drv_get_first_dev_object ========
  *  Purpose:
@@ -293,18 +282,6 @@ extern u32 drv_get_next_dev_object(u32 hdev_obj);
  */
 extern u32 drv_get_next_dev_extension(u32 dev_extension);
 
-/*
- *  ======== drv_init ========
- *  Purpose:
- *      Initialize the DRV module.
- *  Parameters:
- *  Returns:
- *      TRUE if success; FALSE otherwise.
- *  Requires:
- *  Ensures:
- */
-extern int drv_init(void);
-
 /*
  *  ======== drv_insert_dev_object ========
  *  Purpose:

drivers/staging/tidspbridge/pmgr/dspapi.c

@@ -278,7 +278,6 @@ void api_exit(void)
 		proc_exit();
 		mgr_exit();
 		rmm_exit();
-		drv_exit();
 	}
 }
 
@@ -290,12 +289,11 @@ void api_exit(void)
 bool api_init(void)
 {
 	bool ret = true;
-	bool fdrv, fdev, fcod, fchnl, fmsg, fio;
+	bool fdev, fcod, fchnl, fmsg, fio;
 	bool fmgr, fproc, fnode, fdisp, fstrm, frmm;
 
 	if (api_c_refs == 0) {
 		/* initialize driver and other modules */
-		fdrv = drv_init();
 		fmgr = mgr_init();
 		fproc = proc_init();
 		fnode = node_init();
@@ -307,11 +305,9 @@ bool api_init(void)
 		fio = io_init();
 		fdev = dev_init();
 		fcod = cod_init();
-		ret = fdrv && fdev && fchnl && fcod && fmsg && fio;
+		ret = fdev && fchnl && fcod && fmsg && fio;
 		ret = ret && fmgr && fproc && frmm;
 		if (!ret) {
-			if (fdrv)
-				drv_exit();
 
 			if (fmgr)
 				mgr_exit();

drivers/staging/tidspbridge/rmgr/drv.c

@@ -51,7 +51,6 @@ struct drv_ext {
 };
 
 /*  ----------------------------------- Globals */
-static s32 refs;
 static bool ext_phys_mem_pool_enabled;
 struct ext_phys_mem_pool {
 	u32 phys_mem_base;
@@ -331,16 +330,6 @@ int drv_create(struct drv_object **drv_obj)
 	return status;
 }
 
-/*
- *  ======== drv_exit ========
- *  Purpose:
- *      Discontinue usage of the DRV module.
- */
-void drv_exit(void)
-{
-	refs--;
-}
-
 /*
  *  ======== = drv_destroy ======== =
  *  purpose:
@@ -498,21 +487,6 @@ u32 drv_get_next_dev_extension(u32 dev_extension)
 	return dw_dev_extension;
 }
 
-/*
- *  ======== drv_init ========
- *  Purpose:
- *      Initialize DRV module private state.
- */
-int drv_init(void)
-{
-	s32 ret = 1;		/* function return value */
-
-	if (ret)
-		refs++;
-
-	return ret;
-}
-
 /*
  *  ======== drv_insert_dev_object ========
  *  Purpose: