idpf: Add null check patches

BUG=b/469825621
TEST=presubmit
RELEASE_NOTE=None

cos-patch: bug
Signed-off-by: Kevin Berry <kpberry@google.com>
Change-Id: Ic81ff373b5d4ceafded1604f3b0c5538ba6627a4
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/137221
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Reviewed-by: Li Li <boolli@google.com>