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commitbe549d4911upstream. When SCSI blk-mq is enabled, there is a bug in handling errors in scsi_queue_rq. Specifically, the bug is not setting result field of scsi_request correctly when the dispatch of the command has been failed. Since the upper layer code including the sg_io ioctl expects to receive any error status from result field of scsi_request, the error is silently ignored and this could cause data corruptions for some applications. Fixes:d285203cf6("scsi: add support for a blk-mq based I/O path.") Cc: <stable@vger.kernel.org> Signed-off-by: Jaesoo Lee <jalee@purestorage.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.