diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 461bb542e2e8..57701c3b8a59 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -191,6 +191,7 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
 		memcpy((void __force *)to, from, n);
 	else
 		return n;
+	SSYNC();
 	return 0;
 }