Revert "media: uvcvideo: Require entities to have a non-zero unique ID"

This reverts commit 3dd075fe8ebbc6fcbf998f81a75b8c4b159a6195.

Tomasz has reported that his device, Generalplus Technology Inc. 808 Camera,
with ID 1b3f:2002, stopped being detected:

$ ls -l /dev/video*
zsh: no matches found: /dev/video*
[    7.230599] usb 3-2: Found multiple Units with ID 5

This particular device is non-compliant, having both the Output Terminal
and Processing Unit with ID 5. uvc_scan_fallback, though, is able to build
a chain. However, when media elements are added and uvc_mc_create_links
call uvc_entity_by_id, it will get the incorrect entity,
media_create_pad_link will WARN, and it will fail to register the entities.

In order to reinstate support for such devices in a timely fashion,
reverting the fix for these warnings is appropriate. A proper fix that
considers the existence of such non-compliant devices will be submitted in
a later development cycle.

Reported-by: Tomasz Sikora <[email protected]>
Fixes: 3dd075fe8ebb ("media: uvcvideo: Require entities to have a non-zero unique ID")
Cc: [email protected]
Signed-off-by: Thadeu Lima de Souza Cascardo <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Reviewed-by: Ricardo Ribalda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

0 files changed, 0 insertions, 0 deletions