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| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2025-12-30 21:43:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-11 17:22:25 +0300 |
| commit | dff9dd01533166809f2907f9a59857b983d0fe0f (patch) | |
| tree | ccadda41e6a1539b1b37c55ded5f82fdc103c220 /include/linux | |
| parent | 21e52dc7762908c3d499cfb493d1b8281fc1d3ab (diff) | |
| download | linux-dff9dd01533166809f2907f9a59857b983d0fe0f.tar.xz | |
tty: introduce and use tty_port_tty_vhangup() helper
[ Upstream commit 2b5eac0f8c6e79bc152c8804f9f88d16717013ab ]
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>
Stable-dep-of: 74098cc06e75 ("xhci: dbgtty: fix device unregister: fixup")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/tty_port.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/tty_port.h b/include/linux/tty_port.h index 6b367eb17979..bd025c6f3a20 100644 --- a/include/linux/tty_port.h +++ b/include/linux/tty_port.h @@ -235,7 +235,7 @@ bool tty_port_carrier_raised(struct tty_port *port); void tty_port_raise_dtr_rts(struct tty_port *port); void tty_port_lower_dtr_rts(struct tty_port *port); void tty_port_hangup(struct tty_port *port); -void tty_port_tty_hangup(struct tty_port *port, bool check_clocal); +void __tty_port_tty_hangup(struct tty_port *port, bool check_clocal, bool async); void tty_port_tty_wakeup(struct tty_port *port); int tty_port_block_til_ready(struct tty_port *port, struct tty_struct *tty, struct file *filp); @@ -254,4 +254,14 @@ static inline int tty_port_users(struct tty_port *port) return port->count + port->blocked_open; } +static inline void tty_port_tty_hangup(struct tty_port *port, bool check_clocal) +{ + __tty_port_tty_hangup(port, check_clocal, true); +} + +static inline void tty_port_tty_vhangup(struct tty_port *port) +{ + __tty_port_tty_hangup(port, false, false); +} + #endif |