CHROMIUM: cam: ensure that entity/event registration is protected

Add assertions to make sure that entity/event registration is
performed under namespace enum lock (taken for write).

BUG=none
TEST=vcamtest

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Change-Id: Id7060a911e8d54bdb30f14107c7b24d400d26b5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4596840
Tested-by: chromeos-cop-builder@chromeos-cop.iam.gserviceaccount.com <chromeos-cop-builder@chromeos-cop.iam.gserviceaccount.com>
Reviewed-by: Hidenori Kobayashi <hidenorik@chromium.org>
1 file changed