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Xiang Chen ccbfe5a05a scsi: hisi_sas: release SMP slot in lldd_abort_task
When an SMP task timeouts, it will call lldd_abort_task to release the
associated slot, and then will release the sas_task.

Currently in lldd_abort_task, if we fail to internally abort IO, then
the slot of SMP IO is not released, but sas_task will still be later
released, so the slot's sas_task is NULL, which will cause NULL pointer
when hisi_sas_slot_task_free happens later.

To resolve, check the return value of internal abort, and release the
slot if it failed.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23 11:12:02 -04:00
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drivers scsi: hisi_sas: release SMP slot in lldd_abort_task 2017-03-23 11:12:02 -04:00
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include scsi: libiscsi: qedi: convert iscsi_task.refcount from atomic_t to refcount_t 2017-03-15 18:44:39 -04:00
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Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.