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[ Upstream commit b7ed1e29cfe773d648ca09895b92856bd3a2092d ] The Coverity Scan service has detected the calling of wait_for_completion_killable() without checking the return value in ceph_lock_wait_for_completion() [1]. The CID 1636232 defect contains explanation: "If the function returns an error value, the error value may be mistaken for a normal value. In ceph_lock_wait_for_completion(): Value returned from a function is not checked for errors before being used. (CWE-252)". The patch adds the checking of wait_for_completion_killable() return value and return the error code from ceph_lock_wait_for_completion(). [1] https://scan5.scan.coverity.com/#/project-view/64304/10063?selectedIssue=1636232 Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com> Reviewed-by: Alex Markuze <amarkuze@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> 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.