diff options
| author | Johan Hovold <[email protected]> | 2021-05-24 13:09:20 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2021-06-02 14:15:42 +0200 |
| commit | 25d5ce3a606a1eb23a9265d615a92a876ff9cb5f (patch) | |
| tree | d5ba392ce047e0a0d8220182f4dcaf7ee7371f96 /tools/perf/scripts/python/syscall-counts.py | |
| parent | b4bb4d425b7b02424afea2dfdcd77b3b4794175e (diff) | |
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: [email protected]
Fixes: d0f232e823af ("[media] rtl28xxu: add heuristic to detect chip type")
Cc: [email protected] # 4.0
Cc: Antti Palosaari <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions