diff options
| author | Johan Hovold <johan@kernel.org> | 2021-09-17 12:12:04 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-06 10:22:23 +0200 |
| commit | 52317bb337bcd231263ba41f140c3111682223fc (patch) | |
| tree | 1fa098233205cd2db7006349aa8e6b956705f841 /include/linux | |
| parent | 6529927ccf7ebfb6404e1c7bc238dd387f340cea (diff) | |
net: hso: fix muxed tty registration
commit e8f69b16ee776da88589b5271e3f46020efc8f6c upstream.
If resource allocation and registration fail for a muxed tty device
(e.g. if there are no more minor numbers) the driver should not try to
deregister the never-registered (or already-deregistered) tty.
Fix up the error handling to avoid dereferencing a NULL pointer when
attempting to remove the character device.
Fixes: 72dc1c096c70 ("HSO: add option hso driver")
Cc: stable@vger.kernel.org # 2.6.27
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions