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2e87570be9
Add a helper that allocates the nvme_dev structure up to the point where we can call nvme_init_ctrl. This pairs with the free_ctrl method and can thus be used to cleanup the teardown path and make it more symmetric. Note that this now calls nvme_init_ctrl a lot earlier during probing, which also means the per-controller character device shows up earlier. Due to the controller state no commnds can be send on it, but it might make sense to delay the cdev registration until nvme_init_ctrl_finish. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Tested-by Gerd Bayer <gbayer@linxu.ibm.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 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.