[automerger skipped] storageproxyd: Fix inverted conditional in error checking am: 237679cfca -s ours

am skip reason: Merged-In I3b84188aabe58345a83d2fd57bb8103e730cf365 with SHA-1 dcdac24306 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/15983384

Change-Id: I7b4344764e66de4a2848dec9319c6e3abc89751e