diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 35c1ed8..42f042e 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -64,7 +64,7 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 static inline void __raw_writew(u16 val, volatile void __iomem *addr)
 {
        asm volatile("strh %1, %0"
-                    : "+Qo" (*(volatile u16 __force *)addr)
+                    : "+Q" (*(volatile u16 __force *)addr)
                     : "r" (val));
 }
 
@@ -72,7 +72,7 @@ static inline u16 __raw_readw(const volatile void __iomem *addr)
 {
        u16 val;
        asm volatile("ldrh %1, %0"
-                    : "+Qo" (*(volatile u16 __force *)addr),
+                    : "+Q" (*(volatile u16 __force *)addr),
                       "=r" (val));
        return val;
 }