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it is not allow to create sub group under os_desc,
/sys/kernel/config/usb_gadget/dummy/os_desc # mkdir dummy
mkdir: can't create directory 'dummy': Operation not permitted
no one will kmalloc() os_desc entry and kfree(os_desc) will never be called.
static void os_desc_attr_release(struct config_item *item)
{
struct os_desc *os_desc = to_os_desc(item);
kfree(os_desc);
}
remove struct os_desc definition, to_os_desc() and os_desc_attr_release().
Reviewed-by: Jack Pham <quic_jackp@quicinc.com>
Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Link: https://lore.kernel.org/r/1637211213-16400-3-git-send-email-quic_linyyuan@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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.