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[ Upstream commit 6a3572e10f740acd48e2713ef37e92186a3ce5e8 ] CMB decoding should get disabled when the CMB block isn't successfully registered to P2P DMA subsystem. Clean up the CMBMSC register in this error handling codepath to disable CMB decoding (and CMBLOC/CMBSZ registers). Signed-off-by: Icenowy Zheng <uwu@icenowy.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Sasha Levin <sashal@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.