ASoC: soc-pcm: do not hw_free BE if it's still used
Do not free BE hw if it's still used by other FE during dpcm runtime shutdown. Otherwise the BE runtime state will be STATE_HW_FREE and won't be updated to STATE_CLOSE when shutdown ends, because BE dai shutdown function won't close pcm when detecting BE is still under use. With STATE_HW_FREE, BE can't be triggered start again. This corner case can easily appear when one BE is used by two FE, without this patch "ASoC: dpcm: Fix race between FE/BE updates and trigger"(ea9d0d77 ). One FE tries to shutdown but it's raced against xrun on another FE. It improves the be dai hw_free logic. Signed-off-by:Qiao Zhou <zhouqiao@marvell.com> Acked-by:
Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by:
Mark Brown <broonie@kernel.org>
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