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| author |   Johan Hovold <johan@kernel.org> | 2017-11-03 15:30:56 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-28 16:00:50 +0100 |
| commit | 90dbad8cd6efccbdce109d5ef0724f8434a6cdde (patch) | |
| tree | 4d4bd460a12938f02c3811714352da6876594f8a /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | serdev: ttyport: fix NULL-deref on hangup (diff) | |
| download | wireguard-linux-90dbad8cd6efccbdce109d5ef0724f8434a6cdde.tar.xz wireguard-linux-90dbad8cd6efccbdce109d5ef0724f8434a6cdde.zip | |
serdev: ttyport: fix tty locking in close
Make sure to hold the tty lock as required when calling tty-driver
close() (e.g. to avoid racing with hangup()).
Note that the serport active flag is currently set under the lock at
controller open, but really isn't protected by it.
Fixes: cd6484e1830b ("serdev: Introduce new bus for serial attached devices")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions