Revert "usb: gadget: uvc: Add missing call for additional setup data"
authorRoger Quadros <rogerq@ti.com>
Thu, 2 Mar 2017 08:44:58 +0000 (10:44 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 18 Mar 2017 11:14:32 +0000 (19:14 +0800)
commit03123df08e6b77c0491af64e46054dbef5a1cea4
tree28ecf05979e5477acd5d0748d1c8de2593e6628e
parent5ce2e4ce4a8a02d1ca9ed0d4aeac7a24cd3a59b9
Revert "usb: gadget: uvc: Add missing call for additional setup data"

commit eb38d913c27f32f4df173791051fecf6aca34173 upstream.

This reverts commit 4fbac5206afd01b717d4bdc58793d471f3391b4b.

This commit breaks g_webcam when used with uvc-gadget [1].

The user space application (e.g. uvc-gadget) is responsible for
sending response to UVC class specific requests on control endpoint
in uvc_send_response() in uvc_v4l2.c.

The bad commit was causing a duplicate response to be sent with
incorrect response data thus causing UVC probe to fail at the host
and broken control transfer endpoint at the gadget.

[1] - git://git.ideasonboard.org/uvc-gadget.git

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/gadget/function/f_uvc.c