staging: dgnc: free memory allocated

The memory allocated in dgnc_tty_register() for two objects is not freed
anywhere.This patch addresses this by freeing the memory in
dgnc_tty_uninit.
Signed-off-by: NHari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgnc/dgnc_tty.c

@@ -422,8 +422,12 @@ void dgnc_tty_uninit(struct dgnc_board *brd)
 
 	kfree(brd->SerialDriver.ttys);
 	brd->SerialDriver.ttys = NULL;
+	kfree(brd->SerialDriver.termios);
+	brd->SerialDriver.termios = NULL;
 	kfree(brd->PrintDriver.ttys);
 	brd->PrintDriver.ttys = NULL;
+	kfree(brd->PrintDriver.termios);
+	brd->PrintDriver.termios = NULL;
 }
 
 /*=======================================================================