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The patch1da177e4c3: "Linux-2.6.12-rc2" from Apr 16, 2005 (linux-next), leads to the following Smatch static checker warning: drivers/infiniband/hw/mthca/mthca_cmd.c:644 mthca_SYS_EN() error: uninitialized symbol 'out'. drivers/infiniband/hw/mthca/mthca_cmd.c 636 int mthca_SYS_EN(struct mthca_dev *dev) 637 { 638 u64 out; 639 int ret; 640 641 ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, CMD_TIME_CLASS_D); We pass out here and it gets used without being initialized. err = mthca_cmd_post(dev, in_param, out_param ? *out_param : 0, ^^^^^^^^^^ in_modifier, op_modifier, op, context->token, 1); It's the same in mthca_cmd_wait() and mthca_cmd_poll(). Fixes:1da177e4c3("Linux-2.6.12-rc2") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/all/533bc3df-8078-4397-b93d-d1f6cec9b636@moroto.mountain Link: https://lore.kernel.org/r/c559cb7113158c02d75401ac162652072ef1b5f0.1699867650.git.leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
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.