[PATCH v6 02/17] media: v4l2-ioctl: check_ext_ctrls: Return -EINVAL on V4L2_CTRL_WHICH_REQUEST_VAL

From: Ricardo Ribalda
Date: Wed Mar 17 2021 - 12:46:06 EST


Drivers that do not use the ctrl-framework use this function instead.

- Return -EINVAL for request_api calls

Fixes v4l2-compliance:
Buffer ioctls (Input 0):
fail: v4l2-test-buffers.cpp(1994): ret != EINVAL && ret != EBADR && ret != ENOTTY
test Requests: FAIL

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 6fa6f831f095 ("media: v4l2-ctrls: add core request support")
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 403f957a1012..76e2e595d88d 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -931,6 +931,8 @@ static bool check_ext_ctrls(struct v4l2_ext_controls *c, unsigned long ioctl)
case V4L2_CTRL_WHICH_DEF_VAL:
case V4L2_CTRL_WHICH_CUR_VAL:
return true;
+ case V4L2_CTRL_WHICH_REQUEST_VAL:
+ return false;
}

/* Check that all controls are from the same control class. */
--
2.31.0.rc2.261.g7f71774620-goog