linux-kernel - [PATCH] staging: comedi: drivers: usbduxsigma: Removed variables that is never used

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Message-Id: <1422484741-9666-1-git-send-email-rickard_strandqvist@spectrumdigital.se>
Date:	Wed, 28 Jan 2015 23:39:01 +0100
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Bernd Porr <mail@...ndporr.me.uk>,
	Chase Southwood <chase.southwood@...il.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: comedi: drivers: usbduxsigma: Removed variables that is never used

Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 drivers/staging/comedi/drivers/usbduxsigma.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index dc19435..7b80887 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -215,7 +215,6 @@ static void usbduxsigma_ai_handle_urb(struct comedi_device *dev,
 	struct usbduxsigma_private *devpriv = dev->private;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int dio_state;
 	uint32_t val;
 	int ret;
 	int i;
@@ -225,7 +224,7 @@ static void usbduxsigma_ai_handle_urb(struct comedi_device *dev,
 		devpriv->ai_counter = devpriv->ai_timer;
 
 		/* get the state of the dio pins to allow external trigger */
-		dio_state = be32_to_cpu(devpriv->in_buf[0]);
+		be32_to_cpu(devpriv->in_buf[0]);
 
 		/* get the data from the USB bus and hand it over to comedi */
 		for (i = 0; i < cmd->chanlist_len; i++) {
-- 
1.7.10.4

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