[bluez/bluez] 645bd5: audio: Fix stale AVDTP connecting state

[bluez/bluez] 645bd5: audio: Fix stale AVDTP connecting state

[mkaros]

  Branch: refs/heads/1176758
  Home:   https://github.com/bluez/bluez
  Commit: 645bd51a50b2a5e7606268599e73d99cae72da96
      https://github.com/bluez/bluez/commit/645bd51a50b2a5e7606268599e73d99cae72da96
  Author: Kun Ma <mk02092022@gmail.com>
  Date:   2026-09-30 (Wed, 30 Sep 2026)

  Changed paths:
    M profiles/audio/sink.c
    M profiles/audio/source.c

  Log Message:
  -----------
  audio: Fix stale AVDTP connecting state

When a remote dual-role A2DP device reconnects autonomously, both sink
and source services transition to their respective CONNECTING states
upon AVDTP_SESSION_STATE_CONNECTING.

If the remote device only configures one direction (e.g. initiating a
stream from remote Source to local Sink), the unused direction's state
remains stuck in CONNECTING even after the underlying AVDTP session has
reached AVDTP_SESSION_STATE_CONNECTED.

Subsequently, when policy or userspace attempts to initiate audio
playback (e.g. via sink_connect() or source_connect()), the call fails
immediately with -EBUSY due to this stale CONNECTING state.

Fix this by only returning -EBUSY if the underlying AVDTP session is
actually still in AVDTP_SESSION_STATE_CONNECTING. In addition, check if
a stream already exists on that service to prevent concurrent stream
allocations while the session is connected.

Link: https://github.com/bluez/bluez/issues/2381



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