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bb2cb67969
[ Upstream commit 8515965e5e ]
The variable pdev is assigned to dev->plat_dev, and dev->plat_dev is
checked in:
if (!dev->plat_dev)
This indicates both dev->plat_dev and pdev can be NULL. If so, the
function dev_err() is called to print error information.
dev_err(&pdev->dev, "No platform data specified\n");
However, &pdev->dev is an illegal address, and it is dereferenced in
dev_err().
To fix this possible null-pointer dereference, replace dev_err() with
mfc_err().
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@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.