"Kernel Panic" run 'soft/kmod_scripts/sof_bootone.sh', the second time will cause kernel panic on BYT with nocodec tplg

System Environment:
Kernel repo: topic/sof-dev: 2de67aa
soft repo: topic/master: cfff9e0
using tplg: test-ssp2-mclk-0-I2S-volume-s16le-s16le-48k-19200k-nocodec.tplg

Reproduce step:
run the "soft/kmod_scripts/sof_bootone.sh" script, that means do the module reload one time.
the first time, it is ok after with the PR #72 .
but the second time. this kernel will hit panic.

before the 219f401 commit and with PR#72
there is no panic during the 100 reload module test.

dmesg.txt

the PR #80 can fix part of them. there still has panic after merge the PR #80 and PR #72 .

the PR #80 and PR #72 can fix this kind of kernel panic issue already.

[mengdonglin]

@ZhendanYang Could you help to check if this issue can still be reproduced?
Per Zhigang's comment, the fixes were merged.