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[ Upstream commit4f04008038] In iavf_config_clsflower, the filter structure could be accidentally released at the end, if iavf_parse_cls_flower or iavf_handle_tclass ever return a non-zero but positive value. In this case, the function continues through to the end, and will call kfree() on the filter structure even though it has been added to the linked list. This can actually happen because iavf_parse_cls_flower will return a positive IAVF_ERR_CONFIG value instead of the traditional negative error codes. Fix this by ensuring that the kfree() check and error checks are similar. Use the more idiomatic "if (err)" to catch all non-zero error codes. Fixes:0075fa0fad("i40evf: Add support to apply cloud filters") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Tony Brelinski <tony.brelinski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Sasha Levin <sashal@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.