Describe the bug
Bind KPB and copier will failed. This is a regression which is introduced by 0c2c050.
With a test change of moving comp_bind(source, bu); behind comp_buffer_connect(sink, sink->ipc_config.core, buffer, PPL_CONN_DIR_BUFFER_TO_COMP);, the issue disappears.
The topology is:

To Reproduce
Use a pipeline, which contains a KPB component, to record. For example, on MTL nocodec platform, run:

arecord -Dhw:0,11 -c2 -r16000 -fs32_le -M -N 2.wav -vvv

Reproduction Rate
100%

Expected behavior
Record works well.

Impact
The pipelines which contains kpb won't work

Environment

1. Branch name and commit hash of the 2 repositories: sof (firmware/topology) and linux (kernel driver).

   • Kernel: thesofproject/linux@9b5c776
   • SOF: 0664718 + topology2: add dummy wov pipeline to nocodec #6782 + 8938c31

2. Name of the topology file

   • Topology: sof-ace-tplg/sof-mtl-nocodec-wov.tplg (which can be generated with PR topology2: add dummy wov pipeline to nocodec #6782 )

3. Name of the platform(s) on which the bug is observed.

   • Platform: MTLP_RVP_NOCODEC

dmesg

dmesg.txt
mtrace.txt