Messages in this thread | | | From | Johan Hovold <> | Subject | [PATCH 0/3] media: fix zero-length USB control requests | Date | Mon, 24 May 2021 13:09:17 +0200 |
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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.
This series fixes the three media drivers that got this wrong.
Johan
Johan Hovold (3): media: gspca/gl860: fix zero-length control requests media: gspca/sunplus: fix zero-length control requests media: rtl28xxu: fix zero-length control request
drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 3 ++- drivers/media/usb/gspca/gl860/gl860.c | 4 ++-- drivers/media/usb/gspca/sunplus.c | 8 ++++++-- 3 files changed, 10 insertions(+), 5 deletions(-)
-- 2.26.3
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