tree f5dffddd2370e9fd8cad16315dd986eaeb9128c6
parent 8a5a918ef836d6df353b6644f921ad81536b0c35
author Josh Gao <jmgao@google.com> 1553630798 -0700
committer Josh Gao <jmgao@google.com> 1553630798 -0700

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