Drivers that do not use the ctrl-framework use this function instead.
- Return error when handling of REQUEST_VAL. - Do not check for multiple classes when getting the DEF_VAL.
Fixes v4l2-compliance: Control ioctls (Input 0): fail: v4l2-test-controls.cpp(813): doioctl(node, VIDIOC_G_EXT_CTRLS, &ctrls) test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL
Cc: stable@vger.kernel.org Fixes: 6fa6f831f095 ("media: v4l2-ctrls: add core request support") Suggested-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Ricardo Ribalda ribalda@chromium.org --- drivers/media/v4l2-core/v4l2-ioctl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 31d1342e61e8..6f6b310e2802 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -924,8 +924,10 @@ static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) */ if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE) return 0; - if (!c->which) + if (!c->which || c->which == V4L2_CTRL_WHICH_DEF_VAL) return 1; + if (c->which == V4L2_CTRL_WHICH_REQUEST_VAL) + return 0; /* Check that all controls are from the same control class. */ for (i = 0; i < c->count; i++) { if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {