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authorRichard Fitzgerald <rf@opensource.cirrus.com>2023-04-11 18:25:23 +0300
committerMark Brown <broonie@kernel.org>2023-04-12 19:34:35 +0300
commit39a594dc0b4ac949edf221db33c7061c45e2c90b (patch)
tree9552ecfbdb7610ec697c9fd27def236db49f6feb /sound/soc/codecs/cs35l56.c
parentf9dc6b875ec0a6a6d4091cd9603d193ec98c75a2 (diff)
downloadlinux-39a594dc0b4ac949edf221db33c7061c45e2c90b.tar.xz
ASoC: cs35l56: Remove quick-cancelling of dsp_work()
Delete the 'removing' flag and don't kick init_completion to make a quick cancel of dsp_work(). Just let it timeout on the wait for the completion. Simplify the code to standard cancelling or flushing of the work. This avoids introducing corner cases from a layer of custom signalling. It also avoids potential race conditions when system-suspend handling is added. Unless the hardware is broken, the dsp_work() will already have started and passed the completion before the driver would want to cancel it. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/168122674746.26.16881587647873355224@mailman-core.alsa-project.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs35l56.c')
-rw-r--r--sound/soc/codecs/cs35l56.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index 74e8de2f81f5..eb85c27ab087 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -875,7 +875,7 @@ static void cs35l56_dsp_work(struct work_struct *work)
goto complete;
}
- if (!cs35l56->init_done || cs35l56->removing)
+ if (!cs35l56->init_done)
goto complete;
cs35l56->dsp.part = devm_kasprintf(cs35l56->dev, GFP_KERNEL, "cs35l56%s-%02x",
@@ -925,9 +925,6 @@ static void cs35l56_dsp_work(struct work_struct *work)
goto err;
}
- if (cs35l56->removing)
- goto err;
-
mutex_lock(&cs35l56->irq_lock);
init_completion(&cs35l56->init_completion);
@@ -975,7 +972,6 @@ static int cs35l56_component_probe(struct snd_soc_component *component)
BUILD_BUG_ON(ARRAY_SIZE(cs35l56_tx_input_texts) != ARRAY_SIZE(cs35l56_tx_input_values));
- cs35l56->removing = false;
cs35l56->component = component;
wm_adsp2_component_probe(&cs35l56->dsp, component);
@@ -992,8 +988,6 @@ static void cs35l56_component_remove(struct snd_soc_component *component)
{
struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component);
- cs35l56->removing = true;
- complete(&cs35l56->init_completion);
cancel_work_sync(&cs35l56->dsp_work);
}