Merge "Fix potential nullptr dereference in pf_access." into sc-dev am: 2d8a5d52d6 am: 6889a6dc4d am: 0caa9a2c8e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/providers/MediaProvider/+/15359577

Change-Id: I227ae73ff7fb908bd07bb7bc30e8adbb83d94663