diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2014-12-16 16:58:05 +0000 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2015-01-14 17:08:43 -0600 |
| commit | 73c1527f96193ce9f7c7485999cdf96eea885c2c (patch) | |
| tree | b0a7efc14b5755b14d67b21f843fe7f3840ab4d1 | |
| parent | b466e1731be837483c7bbcf1770bbcf707477a77 (diff) | |
| download | qemu-73c1527f96193ce9f7c7485999cdf96eea885c2c.tar.gz | |
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
(cherry picked from commit b28fb27b5edf77f6fd0ac550a156fb20f2218db3)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
| -rw-r--r-- | audio/audio_template.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/audio/audio_template.h b/audio/audio_template.h index 817318853c..584e536fac 100644 --- a/audio/audio_template.h +++ b/audio/audio_template.h @@ -191,9 +191,9 @@ static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp) audio_detach_capture (hw); #endif QLIST_REMOVE (hw, entries); + glue (hw->pcm_ops->fini_, TYPE) (hw); glue (s->nb_hw_voices_, TYPE) += 1; glue (audio_pcm_hw_free_resources_ ,TYPE) (hw); - glue (hw->pcm_ops->fini_, TYPE) (hw); g_free (hw); *hwp = NULL; } |