Messages in this thread Patch in this message | | | From | Johan Hovold <> | Subject | [PATCH 2/2] media: gspca/sq905: fix control-request direction | Date | Fri, 21 May 2021 15:28:39 +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.
Fix the USB_REQ_SYNCH_FRAME request which erroneously used usb_sndctrlpipe().
Fixes: 27d35fc3fb06 ("V4L/DVB (10639): gspca - sq905: New subdriver.") Cc: stable@vger.kernel.org # 2.6.30 Signed-off-by: Johan Hovold <johan@kernel.org> --- drivers/media/usb/gspca/sq905.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/gspca/sq905.c b/drivers/media/usb/gspca/sq905.c index 949111070971..32504ebcfd4d 100644 --- a/drivers/media/usb/gspca/sq905.c +++ b/drivers/media/usb/gspca/sq905.c @@ -116,7 +116,7 @@ static int sq905_command(struct gspca_dev *gspca_dev, u16 index) } ret = usb_control_msg(gspca_dev->dev, - usb_sndctrlpipe(gspca_dev->dev, 0), + usb_rcvctrlpipe(gspca_dev->dev, 0), USB_REQ_SYNCH_FRAME, /* request */ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, SQ905_PING, 0, gspca_dev->usb_buf, 1, -- 2.26.3
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