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c238ec3ef6
register_root_hub() calls memset() setting usb_dev->bus->devmap. devicemap to 0 during hcd probe function (usb_hcd_pci_probe). But in previous function which is also the procedure of usb_hcd_pci_probe(), usb_bus_init() already initialized bus->devmap calling memset(). Furthermore, register_root_hub() is called only once in kernel. So, calling memset() which resets usb_bus->devmap.devicemap in register_root_hub() is redundant. Signed-off-by: Suwan Kim <suwan.kim027@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.