From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 24 Aug 2015 17:14:06 +0000 (-0700)
Subject: staging: comedi: usbduxfast: remove unnecessary clearing of private data
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e48c9c260189e28b57ab3a7cf68c5a29ab6dbf51;p=openwrt%2Fstaging%2Fblogic.git

staging: comedi: usbduxfast: remove unnecessary clearing of private data

The clearing of the private data members in the (*detatch) is not
necessary. The comedi core is going to kfree the private data as soon
as the (*detach) finishes.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c
index 4c86a9a913cd..c6b2a6582127 100644
--- a/drivers/staging/comedi/drivers/usbduxfast.c
+++ b/drivers/staging/comedi/drivers/usbduxfast.c
@@ -998,16 +998,10 @@ static void usbduxfast_detach(struct comedi_device *dev)
 		usb_kill_urb(devpriv->urb);
 
 		kfree(devpriv->inbuf);
-		devpriv->inbuf = NULL;
-
 		usb_free_urb(devpriv->urb);
-		devpriv->urb = NULL;
 	}
 
 	kfree(devpriv->duxbuf);
-	devpriv->duxbuf = NULL;
-
-	devpriv->ai_cmd_running = 0;
 
 	up(&devpriv->sem);
 }