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authorJiri Slaby (SUSE) <jirislaby@kernel.org>2025-06-11 12:02:47 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-17 13:42:33 +0200
commit2b5eac0f8c6e79bc152c8804f9f88d16717013ab (patch)
tree932c435689d3bda8c185a8da21ace68ad5e155c8 /net/bluetooth/rfcomm
parente04c78d86a9699d136910cfc0bdcf01087e3267e (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 'net/bluetooth/rfcomm')
-rw-r--r--net/bluetooth/rfcomm/tty.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 21a5b5535ebc..827dfbe66085 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -438,7 +438,6 @@ static int __rfcomm_release_dev(void __user *arg)
{
struct rfcomm_dev_req req;
struct rfcomm_dev *dev;
- struct tty_struct *tty;
if (copy_from_user(&req, arg, sizeof(req)))
return -EFAULT;
@@ -464,11 +463,7 @@ static int __rfcomm_release_dev(void __user *arg)
rfcomm_dlc_close(dev->dlc, 0);
/* Shut down TTY synchronously before freeing rfcomm_dev */
- tty = tty_port_tty_get(&dev->port);
- if (tty) {
- tty_vhangup(tty);
- tty_kref_put(tty);
- }
+ tty_port_tty_vhangup(&dev->port);
if (!test_bit(RFCOMM_TTY_OWNED, &dev->status))
tty_port_put(&dev->port);