From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 8 Apr 2013 21:31:41 +0000 (-0700)
Subject: staging: comedi: acl7225b: cleanup acl7225b_di_insn_bits()
X-Git-Tag: v3.10-rc1~192^2~215
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=500880a84057eac2e6199a464ad863370167aa6b;p=~emulex%2Finfiniband.git

staging: comedi: acl7225b: cleanup acl7225b_di_insn_bits()

Use a local variable to hold the base register, 'reg', that is used
to read from the device.

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

diff --git a/drivers/staging/comedi/drivers/acl7225b.c b/drivers/staging/comedi/drivers/acl7225b.c
index 80cfa817dd4..5afadce5a24 100644
--- a/drivers/staging/comedi/drivers/acl7225b.c
+++ b/drivers/staging/comedi/drivers/acl7225b.c
@@ -64,8 +64,10 @@ static int acl7225b_di_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	data[1] = inb(dev->iobase + (unsigned long)s->private) |
-	    (inb(dev->iobase + (unsigned long)s->private + 1) << 8);
+	unsigned long reg = (unsigned long)s->private;
+
+	data[1] = inb(dev->iobase + reg) |
+		  (inb(dev->iobase + reg + 1) << 8);
 
 	return insn->n;
 }