tree 11c7737944fbe10147d4ef335ba91bd5d7b8f937
parent 6c5121b78ba5c70a9990e2af6cb4d6bbffe0d4d8
author Jamie Wellnitz <Jamie.Wellnitz@emulex.com> 1221183576 -0400
committer James Bottomley <James.Bottomley@HansenPartnership.com> 1224780137 -0500

[SCSI] sd: Fix handling of NO_SENSE check condition

The current handling of NO_SENSE check condition is the same as
RECOVERED_ERROR, and assumes that in both cases, the I/O was fully
transferred.

We have seen cases of arrays returning with NO_SENSE (no error), but
the I/O was not completely transferred, thus residual set.  Thus,
rather than return good_bytes as the entire transfer, set good_bytes
to 0, so that the midlayer then applies the residual in calculating
the transfer, and for sd, will fail the I/O and fall into a retry
path.

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>