Commit d56738a3 authored by Jiri Slaby's avatar Jiri Slaby Committed by Greg Kroah-Hartman
Browse files

tty: tty_port_open, document shutdown vs failed activate 



Add a note that ->shutdown is not called when ->activate fails. Just so
we are clear.

Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220124071430.14907-5-jslaby@suse.cz


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4e2a44c1

drivers/tty/tty_port.c

+3 −0
Original line number Diff line number Diff line
@@ -736,6 +736,9 @@ EXPORT_SYMBOL_GPL(tty_port_install); 
 * the device to be ready using tty_port_block_til_ready() (e.g.  raises

 * DTR/CTS and waits for carrier).

 *

 * Note that @port->ops->shutdown is not called when @port->ops->activate

 * returns an error (on the contrary, @tty->ops->close is).

 *

 * Locking: Caller holds tty lock.

 *

 * Note: may drop and reacquire tty lock (in tty_port_block_til_ready()) so