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| author | Johan Hovold <johan@kernel.org> | 2021-05-24 14:09:20 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-06-02 15:15:42 +0300 |
| commit | 25d5ce3a606a1eb23a9265d615a92a876ff9cb5f (patch) | |
| tree | d5ba392ce047e0a0d8220182f4dcaf7ee7371f96 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | b4bb4d425b7b02424afea2dfdcd77b3b4794175e (diff) | |
| download | linux-25d5ce3a606a1eb23a9265d615a92a876ff9cb5f.tar.xz | |
media: rtl28xxu: fix zero-length control request
The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.
Control transfers without a data stage are treated as OUT requests by
the USB stack and should be using usb_sndctrlpipe(). Failing to do so
will now trigger a warning.
Fix the zero-length i2c-read request used for type detection by
attempting to read a single byte instead.
Reported-by: syzbot+faf11bbadc5a372564da@syzkaller.appspotmail.com
Fixes: d0f232e823af ("[media] rtl28xxu: add heuristic to detect chip type")
Cc: stable@vger.kernel.org # 4.0
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions