[ARM] Add __iomem checking for __raw_{read,write}[bwl]

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

include/asm-arm/io.h

@@ -47,13 +47,13 @@ extern void __raw_readsb(void __iomem *addr, void *data, int bytelen);
 extern void __raw_readsw(void __iomem *addr, void *data, int wordlen);
 extern void __raw_readsl(void __iomem *addr, void *data, int longlen);
 
-#define __raw_writeb(v,a)	(*(volatile unsigned char __force  *)(a) = (v))
-#define __raw_writew(v,a)	(*(volatile unsigned short __force *)(a) = (v))
-#define __raw_writel(v,a)	(*(volatile unsigned int __force   *)(a) = (v))
+#define __raw_writeb(v,a)	(__chk_io_ptr(a), *(volatile unsigned char __force  *)(a) = (v))
+#define __raw_writew(v,a)	(__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v))
+#define __raw_writel(v,a)	(__chk_io_ptr(a), *(volatile unsigned int __force   *)(a) = (v))
 
-#define __raw_readb(a)		(*(volatile unsigned char __force  *)(a))
-#define __raw_readw(a)		(*(volatile unsigned short __force *)(a))
-#define __raw_readl(a)		(*(volatile unsigned int __force   *)(a))
+#define __raw_readb(a)		(__chk_io_ptr(a), *(volatile unsigned char __force  *)(a))
+#define __raw_readw(a)		(__chk_io_ptr(a), *(volatile unsigned short __force *)(a))
+#define __raw_readl(a)		(__chk_io_ptr(a), *(volatile unsigned int __force   *)(a))
 
 /*
  * Bad read/write accesses...