diff --git a/Linux/KernelDriver/3.2/Misc/demo_misc.c b/Linux/KernelDriver/3.2/Misc/demo_misc.c
index a4ddd82..026afb2 100644
--- a/Linux/KernelDriver/3.2/Misc/demo_misc.c
+++ b/Linux/KernelDriver/3.2/Misc/demo_misc.c
@@ -57,13 +57,13 @@ static loff_t demo_llseek(struct file *filp, loff_t offset, int origin)
     return filp->f_pos;
 }
 
-static ssize_t demo_read(struct file *filp, char __user *buffer, size_t count, loff_t *offset)
+static ssize_t demo_read(struct file *filp, char __user *buffer, size_t count, loff_t *position)
 {
     const char __user *p = buffer;
     return p-buffer;
 }
 
-static ssize_t demo_write(struct file *filp, const char __user *buffer, size_t count, loff_t *offset)
+static ssize_t demo_write(struct file *filp, const char __user *buffer, size_t count, loff_t *position)
 {
     const char __user *p = buffer;
     return p-buffer;
diff --git a/Linux/KernelDriver/4.19/Misc/demo_misc.c b/Linux/KernelDriver/4.19/Misc/demo_misc.c
index a4ddd82..026afb2 100644
--- a/Linux/KernelDriver/4.19/Misc/demo_misc.c
+++ b/Linux/KernelDriver/4.19/Misc/demo_misc.c
@@ -57,13 +57,13 @@ static loff_t demo_llseek(struct file *filp, loff_t offset, int origin)
     return filp->f_pos;
 }
 
-static ssize_t demo_read(struct file *filp, char __user *buffer, size_t count, loff_t *offset)
+static ssize_t demo_read(struct file *filp, char __user *buffer, size_t count, loff_t *position)
 {
     const char __user *p = buffer;
     return p-buffer;
 }
 
-static ssize_t demo_write(struct file *filp, const char __user *buffer, size_t count, loff_t *offset)
+static ssize_t demo_write(struct file *filp, const char __user *buffer, size_t count, loff_t *position)
 {
     const char __user *p = buffer;
     return p-buffer;