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The driver would return success and leave the port structures half-initialised if any of the register accesses during probe fails. This would specifically leave the port control urb unallocated, something which could trigger a NULL pointer dereference on interrupt events. Fortunately the interrupt implementation is completely broken and has never even been enabled... Note that the zero-length-enable register write used to set the zle-flag for all ports is moved to attach. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@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.