linux-kernel - [PATCH 2/2] staging: rtl8712: Remove useless variable 'fw

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Date:	Sun,  1 Jun 2014 14:34:40 +0200
From:	Thomas Vegas <thomas@...uk.net>
To:	gregkh@...uxfoundation.org
Cc:	Larry.Finger@...inger.net, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org, Thomas Vegas <thomas@...uk.net>
Subject: [PATCH 2/2] staging: rtl8712: Remove useless variable 'fw_found'

The net device only exists when firmware is loaded successfully.
Firmware presence variable is only used through r871xu_dev_remove() and
this function already checks for net device existence.

Signed-off-by: Thomas Vegas <thomas@...uk.net>
---
 drivers/staging/rtl8712/drv_types.h | 1 -
 drivers/staging/rtl8712/hal_init.c  | 2 --
 drivers/staging/rtl8712/os_intfs.c  | 3 +--
 drivers/staging/rtl8712/usb_intf.c  | 6 ++----
 4 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/rtl8712/drv_types.h b/drivers/staging/rtl8712/drv_types.h
index 3362e5e..0168745 100644
--- a/drivers/staging/rtl8712/drv_types.h
+++ b/drivers/staging/rtl8712/drv_types.h
@@ -160,7 +160,6 @@ struct _adapter {
 	s32	bSurpriseRemoved;
 	u32	IsrContent;
 	u32	ImrContent;
-	bool	fw_found;
 	u8	EepromAddressSize;
 	u8	hw_init_completed;
 	struct task_struct *cmdThread;
diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 36de7e4..0556de3 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -50,13 +50,11 @@ static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
 		struct usb_device *udev = padapter->dvobjpriv.pusbdev;
 		struct usb_interface *pusb_intf = padapter->pusb_intf;
 		dev_err(&udev->dev, "r8712u: Firmware request failed\n");
-		padapter->fw_found = false;
 		usb_put_dev(udev);
 		usb_set_intfdata(pusb_intf, NULL);
 		return;
 	}
 	padapter->fw = firmware;
-	padapter->fw_found = true;
 	/* firmware available - start netdev */
 	register_netdev(padapter->pnetdev);
 }
diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 6bd0821..13debb5 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -345,8 +345,7 @@ u8 r8712_free_drv_sw(struct _adapter *padapter)
 	r8712_free_mlme_priv(&padapter->mlmepriv);
 	r8712_free_io_queue(padapter);
 	_free_xmit_priv(&padapter->xmitpriv);
-	if (padapter->fw_found)
-		_r8712_free_sta_priv(&padapter->stapriv);
+	_r8712_free_sta_priv(&padapter->stapriv);
 	_r8712_free_recv_priv(&padapter->recvpriv);
 	mp871xdeinit(padapter);
 	if (pnetdev)
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index bec9d454..beff69b 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -613,8 +613,7 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
 		struct _adapter *padapter = netdev_priv(pnetdev);
 
 		usb_set_intfdata(pusb_intf, NULL);
-		if (padapter->fw_found)
-			release_firmware(padapter->fw);
+		release_firmware(padapter->fw);
 		/* never exit with a firmware callback pending */
 		wait_for_completion(&padapter->rtl8712_fw_ready);
 		if (drvpriv.drv_registered == true)
@@ -623,8 +622,7 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
 		flush_scheduled_work();
 		udelay(1);
 		/* Stop driver mlme relation timer */
-		if (padapter->fw_found)
-			r8712_stop_drv_timers(padapter);
+		r8712_stop_drv_timers(padapter);
 		r871x_dev_unload(padapter);
 		r8712_free_drv_sw(padapter);
 
-- 
1.8.5.5

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