media: usbvision: deprecate driver

The driver is deprecated and scheduled for removal by the end
of 2020. The reason is that this driver is for old and obsolete
hardware, and it produces a continuous stream of syzbot errors due
to poor code.

In order to prevent removal the following actions would have to
be taken:

- clean up the code
- convert to the vb2 framework
- fix the disconnect and free-on-last-user handling (i.e., add
  a release callback for struct v4l2_device and rework the code
  to use that correctly).

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/staging/media/usbvision/Kconfig b/drivers/staging/media/usbvision/Kconfig
new file mode 100644
index 000000000000..7903f558494e
--- /dev/null
+++ b/drivers/staging/media/usbvision/Kconfig
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_USBVISION
+	tristate "USB video devices based on Nogatech NT1003/1004/1005 (Deprecated)"
+	depends on I2C && VIDEO_V4L2
+	select VIDEO_TUNER
+	select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  There are more than 50 different USB video devices based on
+	  NT1003/1004/1005 USB Bridges. This driver enables using those
+	  devices.
+
+	  This driver is deprecated and scheduled for removal by the
+	  end of 2020. See the TODO file in drivers/staging/media/usbvision
+	  for a list of actions that have to be done in order to prevent
+	  removal of this driver.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called usbvision.