adbd: increment writes_submitted_ before submitting writes.

If we fail to submit writes for some reason (e.g. the USB cable was
unplugged), another thread that's waiting on the write mutex can enter
SubmitWrites and attempt to resubmit the writes that we already failed
to submit, leading to a failed assertion of !IoBlock::pending.

Increment writes_submitted_ before actually calling io_submit, so we
skip over these writes and fall through to exit.

Bug: http://b/129134256
Test: manually unplugged a blueline
Change-Id: I2fd0034e45db22c8f637c81039ce686b7aa6a03b

0 files changed, 0 insertions, 0 deletions