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Subject: media: gspca/sq905: fix control-request direction
Author: Johan Hovold <johan@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx # 2.6.30
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
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,
