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Subject: media: gspca/sq905: fix control-request direction Author: Johan Hovold johan@kernel.org Date: Fri May 21 15:28:39 2021 +0200
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 Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@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,