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5b5f99b186
It is confusing to directly use return value of netlink_send()/ netlink_unicast() as the return value of *notify*, as it may be not error at all. Example: in tc_del_tfilter(), after calling tfilter_del_notify(), it will goto errout if (err). However, the netlink_send()/netlink_unicast() will return positive value even for successful case. So it may not call tcf_chain_tp_remove() and so on to clean up the resource, as a result, resource is leaked. It may be easier to only check the return value of tfilter_del_nofiy(), but it is more clean to correct all related functions. Co-developed-by: Zengmo Gao <gaozengmo@jd.com> Signed-off-by: Zhike Wang <wangzhike@jd.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.