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9600156bb9
There are two reference count leaks in this driver:
1. In nforce2_fsb_read(): pci_get_subsys() increases the reference count
of the PCI device, but pci_dev_put() is never called to release it,
thus leaking the reference.
2. In nforce2_detect_chipset(): pci_get_subsys() gets a reference to the
nforce2_dev which is stored in a global variable, but the reference
is never released when the module is unloaded.
Fix both by:
- Adding pci_dev_put(nforce2_sub5) in nforce2_fsb_read() after reading
the configuration.
- Adding pci_dev_put(nforce2_dev) in nforce2_exit() to release the
global device reference.
Found via static analysis.
Fixes:
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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 reStructuredText 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.