From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 21 Jan 2015 22:11:46 +0000 (-0700)
Subject: staging: comedi: ni_labpc: remove unnecessary private data validation
X-Git-Tag: v4.0-rc1~82^2~201
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=aae59483bce95c3fffd4fa66d5360712f372ba1a;p=karo-tx-linux.git

staging: comedi: ni_labpc: remove unnecessary private data validation

The labpc_free_dma_chan() function validates the private data. Remove the
unnecessary validation in labpc_datach().

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/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index e7b25e8a1467..a916047791b8 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -104,11 +104,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static void labpc_detach(struct comedi_device *dev)
 {
-	struct labpc_private *devpriv = dev->private;
-
-	if (devpriv)
-		labpc_free_dma_chan(dev);
-
+	labpc_free_dma_chan(dev);
 	comedi_legacy_detach(dev);
 }