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The last gdev is the device that failed the __iommu_device_set_domain(). So, it doesn't need to be reverted, given it's attached to group->domain already. This is not a problem currently, since it's a simply re-attach. However, the core will need to pass in the old domain to __iommu_device_set_domain so the old domain pointers would be inconsistent between a failed device and all its prior succeeded devices, as all the prior devices need to be reverted. Avoid the re-attach for the last gdev, by breaking before the revert. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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 reStructuredText 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.