1 files changed, 3 insertions, 3 deletions

diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index e1534783e94e..52f7e8499172 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -55,7 +55,7 @@ static inline unsigned int _swapl(volatile unsigned long v)
 #define __raw_writew writew
 #define __raw_writel writel
 
-static inline void io_outsb(unsigned int addr, void *buf, int len)
+static inline void io_outsb(unsigned int addr, const void *buf, int len)
 {
         volatile unsigned char *ap = (volatile unsigned char *) addr;
         unsigned char *bp = (unsigned char *) buf;
@@ -63,7 +63,7 @@ static inline void io_outsb(unsigned int addr, void *buf, int len)
                 *ap = *bp++;
 }
 
-static inline void io_outsw(unsigned int addr, void *buf, int len)
+static inline void io_outsw(unsigned int addr, const void *buf, int len)
 {
         volatile unsigned short *ap = (volatile unsigned short *) addr;
         unsigned short *bp = (unsigned short *) buf;
@@ -71,7 +71,7 @@ static inline void io_outsw(unsigned int addr, void *buf, int len)
                 *ap = _swapw(*bp++);
 }
 
-static inline void io_outsl(unsigned int addr, void *buf, int len)
+static inline void io_outsl(unsigned int addr, const void *buf, int len)
 {
         volatile unsigned int *ap = (volatile unsigned int *) addr;
         unsigned int *bp = (unsigned int *) buf;