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ac1ddc584e
This driver did not set kobj.parent so it likely suffered from a potential use after free race if the user unregistered the device while it was in use. This was not so straightforward a conversion but I think this patch cleans up its probe's error path significantly. This patch adds device_initialize, which is required for cdev_device_add. Then it switches to put_device instead of kfree as recommended by device_initialize's documentation. This removes a lot from the error path which was already in __remove. A couple things needed to be re-ordered to be entirely correct, though. ida_remove is also moved out of __remove and into unregister to simplify things and follow the pattern other devices are using. This also drop an extra unnecessary get_device/put_device in the code. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.