tree 4b7365e1e655036a1e1639b7cc6b7f6e0479edcf
parent 7e58e2ac7778cca3234c33387e49577bb7732714
author Peter Maydell <peter.maydell@linaro.org> 1418749085 +0000
committer Peter Maydell <peter.maydell@linaro.org> 1419289945 +0000

audio: Don't free hw resources until after hw backend is stopped

When stopping an audio voice, call the audio backend's fini
method before calling audio_pcm_hw_free_resources_ rather than
afterwards. This allows backends which use helper threads (like
pulseaudio) to terminate those threads before the conv_buf or
mix_buf are freed and avoids race conditions where the helper
may access a NULL pointer or freed memory.

Cc: qemu-stable@nongnu.org
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418406239-9838-1-git-send-email-peter.maydell@linaro.org