| commit | 126d26f66d9890a69158812a6caa248c05359daa | [log] [tgz] |
|---|---|---|
| author | Johan Hovold <johan@kernel.org> | Fri Oct 21 12:56:27 2016 +0200 |
| committer | Johan Hovold <johan@kernel.org> | Fri Oct 21 16:47:17 2016 +0200 |
| tree | a0ea2a08cb65b6cac7b91a147edab37976538bb6 | |
| parent | de24e0a108bc48062e1c7acaa97014bce32a919f [diff] |
USB: serial: fix potential NULL-dereference at probe
Make sure we have at least one port before attempting to register a
console.
Currently, at least one driver binds to a "dummy" interface and requests
zero ports for it. Should such an interface also lack endpoints, we get
a NULL-deref during probe.
Fixes: e5b1e2062e05 ("USB: serial: make minor allocation dynamic")
Cc: stable <stable@vger.kernel.org> # 3.11
Signed-off-by: Johan Hovold <johan@kernel.org>