The las0, las1, and lcfg variables in struct rtdPrivate are all
ioremap'ed pci resources and should be void __iomem *
not void *.

This quiets a lot of sparse warings for the writel and readl like:

warning: incorrect type in argument 1 (different address spaces)
   expected void const volatile [noderef] <asn:2>*addr
   got void *<noident>

warning: incorrect type in argument 2 (different address spaces)
   expected void volatile [noderef] <asn:2>*addr
   got void *

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

---

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 0c15b82..0e62bae 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -339,9 +339,9 @@ static const struct rtdBoard rtd520Boards[] = {
 */
 struct rtdPrivate {
 	/* memory mapped board structures */
-	void *las0;
-	void *las1;
-	void *lcfg;
+	void __iomem *las0;
+	void __iomem *las1;
+	void __iomem *lcfg;
 
 	unsigned long intCount;	/* interrupt count */
 	long aiCount;		/* total transfer size (samples) */
--
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