[PATCH] m32r_sio iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/serial/m32r_sio.h b/drivers/serial/m32r_sio.h
index 07d0dd8..7c3ec24 100644
--- a/drivers/serial/m32r_sio.h
+++ b/drivers/serial/m32r_sio.h
@@ -37,7 +37,7 @@
 	unsigned int irq;
 	unsigned int flags;
 	unsigned char io_type;
-	unsigned char *iomem_base;
+	unsigned char __iomem *iomem_base;
 	unsigned short iomem_reg_shift;
 };