[alsa-devel] [PATCH] ASoC: amd: Fix for Subsequent Playback issue.

[Mark Brown]

On Tue, Jan 21, 2020 at 05:12:42PM +0000, RAVULAPATI, VISHNU VARDHAN RAO wrote:

Please fix your mailer to quote replies normally, it's hard to read your
mails.

> In what way is it part of the fix?  This at least needs some sort of
> explanation somewhere, the changelog at least if not the code.

> When we play subsequently we hear last played sound for moment.kfree clears the structure.

If the rtd is still being referenced after the kfree() you have a use
after free bug so there's a serious problem there and this change is
introducing a bug, you can only free things if they are not in use.  At
a bare minimum I need the changelog to clearly explain what the cause of
the clicks is and how the change fixes that.
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