17 May
2016
17 May
'16
4:33 a.m.
+static void rt5514_spi_copy_work(struct work_struct *work) +{
- struct rt5514_dsp *rt5514_dsp =
container_of(work, struct rt5514_dsp, copy_work.work);- struct snd_pcm_runtime *runtime = rt5514_dsp->substream->runtime;
- size_t period_bytes, truncated_bytes = 0;
I can't see anything that cancels this work when the PCM stream to userspace is stopped or if things power off otherwise?
In the beginning of the function "rt5514_spi_copy_work", there is a if condition to check the variable "rt5514_dsp->substream", and the function "rt5514_spi_hw_free" will set the variable "rt5514_dsp->substream" to NULL. It also will make the delayed work stop and won't schedule again.