diff options
| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2025-06-11 12:02:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-17 13:42:33 +0200 |
| commit | 2b5eac0f8c6e79bc152c8804f9f88d16717013ab (patch) | |
| tree | 932c435689d3bda8c185a8da21ace68ad5e155c8 /drivers/usb/class/cdc-acm.c | |
| parent | e04c78d86a9699d136910cfc0bdcf01087e3267e (diff) | |
tty: introduce and use tty_port_tty_vhangup() helper
This code (tty_get -> vhangup -> tty_put) is repeated on few places.
Introduce a helper similar to tty_port_tty_hangup() (asynchronous) to
handle even vhangup (synchronous).
And use it on those places.
In fact, reuse the tty_port_tty_hangup()'s code and call tty_vhangup()
depending on a new bool parameter.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: David Lin <dtwlin@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Alex Elder <elder@kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250611100319.186924-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index c2ecfa3c8349..f9171fbedf5c 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1571,7 +1571,6 @@ err_put_port: static void acm_disconnect(struct usb_interface *intf) { struct acm *acm = usb_get_intfdata(intf); - struct tty_struct *tty; int i; /* sibling interface is already cleaning up */ @@ -1598,11 +1597,7 @@ static void acm_disconnect(struct usb_interface *intf) usb_set_intfdata(acm->data, NULL); mutex_unlock(&acm->mutex); - tty = tty_port_tty_get(&acm->port); - if (tty) { - tty_vhangup(tty); - tty_kref_put(tty); - } + tty_port_tty_vhangup(&acm->port); cancel_delayed_work_sync(&acm->dwork); |