linux-kernel - [PATCH 13/17] staging: tidspbridge: remove dev_init() and dev

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Date:	Fri,  9 Mar 2012 01:03:48 +0100
From:	Víctor Manuel Jáquez Leal 
	<vjaquez@...lia.com>
To:	Omar Ramirez Luna <omar.ramirez@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Felipe Contreras <felipe.contreras@...ia.com>,
	linux-omap@...r.kernel.org
Subject: [PATCH 13/17] staging: tidspbridge: remove dev_init() and dev_exit()

The dev module has a dev_init() and a dev_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@...lia.com>
---
 .../staging/tidspbridge/include/dspbridge/dev.h    |   27 ------------------
 drivers/staging/tidspbridge/pmgr/dev.c             |   29 --------------------
 drivers/staging/tidspbridge/pmgr/dspapi.c          |   22 ++-------------
 3 files changed, 3 insertions(+), 75 deletions(-)

diff --git a/drivers/staging/tidspbridge/include/dspbridge/dev.h b/drivers/staging/tidspbridge/include/dspbridge/dev.h
index f92b4be..fa2d79e 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/dev.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/dev.h
@@ -478,33 +478,6 @@ extern int dev_get_bridge_context(struct dev_object *hdev_obj,
 				      **phbridge_context);
 
 /*
- *  ======== dev_exit ========
- *  Purpose:
- *      Decrement reference count, and free resources when reference count is
- *      0.
- *  Parameters:
- *  Returns:
- *  Requires:
- *      DEV is initialized.
- *  Ensures:
- *      When reference count == 0, DEV's private resources are freed.
- */
-extern void dev_exit(void);
-
-/*
- *  ======== dev_init ========
- *  Purpose:
- *      Initialize DEV's private state, keeping a reference count on each call.
- *  Parameters:
- *  Returns:
- *      TRUE if initialized; FALSE if error occurred.
- *  Requires:
- *  Ensures:
- *      TRUE: A requirement for the other public DEV functions.
- */
-extern bool dev_init(void);
-
-/*
  *  ======== dev_insert_proc_object ========
  *  Purpose:
  *      Inserts the Processor Object into the List of PROC Objects
diff --git a/drivers/staging/tidspbridge/pmgr/dev.c b/drivers/staging/tidspbridge/pmgr/dev.c
index c5e627c..6234ffb 100644
--- a/drivers/staging/tidspbridge/pmgr/dev.c
+++ b/drivers/staging/tidspbridge/pmgr/dev.c
@@ -81,9 +81,6 @@ struct drv_ext {
 	char sz_string[MAXREGPATHLENGTH];
 };
 
-/*  ----------------------------------- Globals */
-static u32 refs;		/* Module reference count */
-
 /*  ----------------------------------- Function Prototypes */
 static int fxn_not_implemented(int arg, ...);
 static int init_cod_mgr(struct dev_object *dev_obj);
@@ -649,32 +646,6 @@ int dev_get_bridge_context(struct dev_object *hdev_obj,
 }
 
 /*
- *  ======== dev_exit ========
- *  Purpose:
- *      Decrement reference count, and free resources when reference count is
- *      0.
- */
-void dev_exit(void)
-{
-	refs--;
-}
-
-/*
- *  ======== dev_init ========
- *  Purpose:
- *      Initialize DEV's private state, keeping a reference count on each call.
- */
-bool dev_init(void)
-{
-	bool ret = true;
-
-	if (ret)
-		refs++;
-
-	return ret;
-}
-
-/*
  *  ======== dev_notify_clients ========
  *  Purpose:
  *      Notify all clients of this device of a change in device status.
diff --git a/drivers/staging/tidspbridge/pmgr/dspapi.c b/drivers/staging/tidspbridge/pmgr/dspapi.c
index b9ca24c..9ef1ad9 100644
--- a/drivers/staging/tidspbridge/pmgr/dspapi.c
+++ b/drivers/staging/tidspbridge/pmgr/dspapi.c
@@ -265,11 +265,8 @@ void api_exit(void)
 {
 	api_c_refs--;
 
-	if (api_c_refs == 0) {
-		/* Release all modules initialized in api_init(). */
-		dev_exit();
+	if (api_c_refs == 0)
 		mgr_exit();
-	}
 }
 
 /*
@@ -280,23 +277,10 @@ void api_exit(void)
 bool api_init(void)
 {
 	bool ret = true;
-	bool fdev;
-	bool fmgr;
-
-	if (api_c_refs == 0) {
-		/* initialize driver and other modules */
-		fmgr = mgr_init();
-		fdev = dev_init();
-		ret = fdev && fmgr;
-		if (!ret) {
 
-			if (fmgr)
-				mgr_exit();
+	if (api_c_refs == 0)
+		ret = mgr_init();
 
-			if (fdev)
-				dev_exit();
-		}
-	}
 	if (ret)
 		api_c_refs++;
 
-- 
1.7.9.1

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