Staging: comedi: plx9080.h: properly mark iomem variables

It's a __iomem *, so mark it as such.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/plx9080.h

@@ -380,9 +380,9 @@ enum bigend_bits {
 #define MBX_ADDR_SPACE_360 0x80	/* wanXL100s/200/400 */
 #define MBX_ADDR_MASK_360 (MBX_ADDR_SPACE_360-1)
 
-static inline int plx9080_abort_dma(void *iobase, unsigned int channel)
+static inline int plx9080_abort_dma(void __iomem *iobase, unsigned int channel)
 {
-	void *dma_cs_addr;
+	void __iomem *dma_cs_addr;
 	uint8_t dma_status;
 	const int timeout = 10000;
 	unsigned int i;