> On Mon, 10 Aug 2020 08:39:55 +0200, > Dinghao Liu wrote: > > > > When snd_pcm_hw_constraint_pow2() fails, dpcm should be freed > > just like when hpi_instream_open() fails. > > It will be cleaned up via runtime->private_free call in the caller > side (snd_pcm_open -> snd_pcm_release_substream -> > snd_pcm_detach_substream), hence this would result in double-free. > It's clear to me, thanks! Regards, Dinghao