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authorChristoph Hellwig <hch@infradead.org>2011-07-16 15:00:35 -0400
committerJames Bottomley <JBottomley@Parallels.com>2011-08-30 12:13:46 -0700
commitac81c6a832a8769d1cc7ffda361aa3dc3d8f06dc (patch)
treebf1c08af7dbfb37c5e3f9752fb2de96decc2d396 /include/scsi
parenta923f756be07aae690ec3dd2e4a25967658cf893 (diff)
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[SCSI] libsas: fix sas_queuecommand return values
->queuecommand must return either 0, or one of the SCSI_MLQUEUE_* return values. Non-transient errors are indicated by setting cmd->result before calling ->scsi_done and returning 0. Fix libsas to adhere to this calling convention. Note that the DID_ERROR for returns from the low-level driver might not be correct for all cases, but it's the best we can do with the current layering in libsas. I also suspect that the pre-existing handling of -SAS_QUEUE_FULL should really be SCSI_MLQUEUE_HOST_BUSY, but I'll leave that for a separate change. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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