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@opensource.wolfsonmicro.com --- sound/soc/soc-core.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4489c5b..c57d5f1 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -530,6 +530,15 @@ static int soc_ac97_dev_register(struct snd_soc_codec *codec) } #endif
+static void codec2codec_close_delayed_work(struct work_struct *work) +{ + /* Currently nothing to do for c2c links + * Since c2c links are internal nodes in the DAPM graph and + * don't interface with the outside world or application layer + * we don't have to do any special handling on close. + */ +} + #ifdef CONFIG_PM_SLEEP /* powers down audio subsystem for suspend */ int snd_soc_suspend(struct device *dev) @@ -1428,6 +1437,9 @@ 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;