tty: add missing tty_driver include to tty_port.h

Include the definition of struct tty_driver in tty_port.h to keep the
header self-contained and avoid build breakage in case anyone includes
it before tty_driver.h.

Fixes: eb3b0d92c9c3 ("tty: tty_port: add workqueue to flip TTY buffer")
Cc: Xin Zhao <jackzxcui1989@163.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260506124323.186703-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/tty_port.h b/include/linux/tty_port.h
index d2a7882c0b58bea1730182371d25a0a87499ab99..23cad403bb8f5e9cf675bb41ae3c61d906149904 100644 (file)
--- a/include/linux/tty_port.h
+++ b/include/linux/tty_port.h
@@ -6,10 +6,10 @@
 #include <linux/kref.h>
 #include <linux/mutex.h>
 #include <linux/tty_buffer.h>
+#include <linux/tty_driver.h>
 #include <linux/wait.h>
 
 struct attribute_group;
-struct tty_driver;
 struct tty_port;
 struct tty_struct;