ASoC: stm32: spdifrx: fix race condition in irq handler

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When snd_pcm_stop() is called in interrupt routine,
substream context may have already been released.
Add protection on substream context.

Fixes: 03e4d5d56f ("ASoC: stm32: Add SPDIFRX support")

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/20191204154333.7152-3-olivier.moysan@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Olivier Moysan 2019-12-04 16:43:32 +01:00 • committed by Mark Brown

parent 2859b17840

commit 86e1956af4

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1 changed files with 19 additions and 5 deletions

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sound/soc/stm/stm32_spdifrx.c

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