2c1382840c
FE is connected to two BEs, BE1 is active, BE2 is deactive. When closing BE1, FE/BE1 is in HW_FREE state, then BE2 is startup by mixer runtime update. For FE is in HW_FREE state, dpcm_run_update_startup() will skip BE2's startup because FE's state is HW_FREE, BE2 stays in FE's be_clients list. During FE's closed, the dpcm_fe_dai_close() will close all related BEs, BE2 will be closed. This will lead to BE2's dpcm[stream].users mismatch. We need disconnet all pending BEs in the corner case. Signed-off-by: zhucancan <zhucancan@vivo.com> Link: https://lore.kernel.org/r/AAoArwDfDnoefyxzy2wyiaqm.1.1608885766936.Hmail.zhucancan@vivo.com Signed-off-by: Mark Brown <broonie@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.