chardev2: Fix missing header for {get, put}_user

linD026 · linD026 · commit 8a5879a0faf5 · 2023-03-14T08:15:06.000+08:00
diff --git a/examples/chardev2.c b/examples/chardev2.c
@@ -11,6 +11,7 @@
 #include <linux/module.h> /* Specifically, a module */
 #include <linux/printk.h>
 #include <linux/types.h>
+#include <linux/uaccess.h> /* for get_user and put_user */
 
 #include <asm/errno.h>
 
