linux-kernel - [PATCH 01/10] media: uvcvideo: Return -EINVAL for REQUEST API

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Message-Id: <20210311122040.1264410-2-ribalda@chromium.org>
Date:   Thu, 11 Mar 2021 13:20:30 +0100
From:   Ricardo Ribalda <ribalda@...omium.org>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tomasz Figa <tfiga@...omium.org>, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, senozhatsky@...omium.org
Cc:     Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH 01/10] media: uvcvideo: Return -EINVAL for REQUEST API

The driver does not support it.

Fixes v4l2-compliance:

Buffer ioctls (Input 0):
                fail: v4l2-test-buffers.cpp(1925): ret != EINVAL && ret != EBADR && ret != ENOTTY
        test Requests: FAIL

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/usb/uvc/uvc_v4l2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 252136cc885c..5e3ec4a376e4 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -1046,6 +1046,9 @@ static int uvc_ioctl_g_ext_ctrls(struct file *file, void *fh,
 	unsigned int i;
 	int ret;
 
+	if (ctrls->which == V4L2_CTRL_WHICH_REQUEST_VAL)
+		return -EINVAL;
+
 	if (ctrls->which == V4L2_CTRL_WHICH_DEF_VAL) {
 		for (i = 0; i < ctrls->count; ++ctrl, ++i) {
 			struct v4l2_queryctrl qc = { .id = ctrl->id };
-- 
2.31.0.rc2.261.g7f71774620-goog