Re: [alsa-devel] [PATCH v3] ASoC: core: init delayed_work forcodec-codec links

From: Richard Fitzgerald
Date: Fri Aug 02 2013 - 06:52:05 EST


We must init the delayed_work for codec-codec links
otherwise shutting down the DAI chain will fault when
calling flush_delayed_work_sync() on the linked DAI.

Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/soc-core.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4489c5b..450dbf4 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -530,6 +530,10 @@ static int soc_ac97_dev_register(struct snd_soc_codec *codec)
}
#endif

+static void codec2codec_close_delayed_work(struct work_struct *work)
+{
+}
+
#ifdef CONFIG_PM_SLEEP
/* powers down audio subsystem for suspend */
int snd_soc_suspend(struct device *dev)
@@ -1428,6 +1432,9 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
return ret;
}
} else {
+ INIT_DELAYED_WORK(&rtd->delayed_work,
+ codec2codec_close_delayed_work);
+
/* link the DAI widgets */
play_w = codec_dai->playback_widget;
capture_w = cpu_dai->capture_widget;
--
1.7.2.5

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