[git:media_tree/master] media: gspca/sq905: fix control-request direction

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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,



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