Yandong Lin be32fafb08 video: rockchip: mpp: Fix mpp_iommu_refresh crash issue
1. mpp_iommu_refresh will crash after mpp_iommu_detach, cause by
iommu->domain is null.
2. After the mpp_iommu_refresh operation, there is no need to do
mpp_iommu_detach/attach operations, because the purpose is the same
for refresh iommu.

Signed-off-by: Yandong Lin <yandong.lin@rock-chips.com>
Change-Id: I7c39a63cac67e94b80e7df26c8962b3fed4c670e
2021-11-18 16:10:46 +08:00
2019-08-29 19:45:37 +08:00
2019-08-29 19:45:37 +08:00

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
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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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.
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