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[ Upstream commit 6896c2449a1858acb643014894d01b3a1223d4e5 ] stmmac_hw_setup() may return 0 on success and an appropriate negative integer as defined in errno.h file on failure, just check it and then return early if failed in stmmac_resume(). Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Link: https://patch.msgid.link/20250811073506.27513-2-yangtiezhu@loongson.cn 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.