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[ Upstream commitef45e8400f] Most kernel functions return negative error codes but some irq functions return zero on error. In this code irq_of_parse_and_map(), returns zero and platform_get_irq() returns negative error codes. We need to handle both cases appropriately. Fixes:8425c41d1e("net: ll_temac: Extend support to non-device-tree platforms") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Esben Haabendal <esben@geanix.com> Reviewed-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Harini Katakam <harini.katakam@amd.com> Link: https://lore.kernel.org/r/3d0aef75-06e0-45a5-a2a6-2cc4738d4143@moroto.mountain Signed-off-by: Jakub Kicinski <kuba@kernel.org> 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.