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[ Upstream commitd712d3fb48] The TMF timeout timer may trigger at the same time when the response from a controller is being handled. When this happens the SAS task may get freed before the response processing is finished. Fix this by calling complete() only when SAS_TASK_STATE_DONE is not set. A similar race condition was fixed in commitb90cd6f2b9("scsi: libsas: fix a race condition when smp task timeout") Link: https://lore.kernel.org/r/20210707185945.35559-1-ipylypiv@google.com Reviewed-by: Vishakha Channapattan <vishakhavc@google.com> Acked-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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.