--- zzzz-none-000/linux-2.6.39.4/drivers/tty/tty_io.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/drivers/tty/tty_io.c	2021-11-10 13:38:17.000000000 +0000
@@ -64,8 +64,13 @@
  * Move do_SAK() into process context.  Less stack use in devfs functions.
  * alloc_tty_struct() always uses kmalloc()
  *			 -- Andrew Morton <andrewm@uow.edu.eu> 17Mar01
+ *
+ * 
+ * Includes Intel Corporation's changes/modifications dated: [01/24/2013].
+ * Changed/modified portions - Copyright © [2011], Intel Corporation.
  */
 
+
 #include <linux/types.h>
 #include <linux/major.h>
 #include <linux/errno.h>
@@ -1122,6 +1127,11 @@
 
 	if (tty_paranoia_check(tty, inode, "tty_write"))
 		return -EIO;
+    /* in case TCOOFF ioctl was called*/
+    if (tty->flow_stopped == 1)
+    {
+        return count;
+    }
 	if (!tty || !tty->ops->write ||
 		(test_bit(TTY_IO_ERROR, &tty->flags)))
 			return -EIO;