The description of commit e39a97353e53 is wrong: it mentions that
commit 2a842acab109 introduced a bug in __scsi_error_from_host_byte()
although that commit did not change the behavior of that function.
Additionally, commit e39a97353e53 introduced a bug: it causes commands
that fail with hostbyte=DID_OK and driverbyte=DRIVER_SENSE to be
completed with BLK_STS_OK. Hence revert that commit.

Fixes: e39a97353e53 ("scsi: core: return BLK_STS_OK for DID_OK in 
__scsi_error_from_host_byte()")
Reported-by: Damien Le Moal <damien.lem...@wdc.com>
Signed-off-by: Bart Van Assche <bart.vanass...@wdc.com>
Cc: Hannes Reinecke <h...@suse.com>
Cc: Douglas Gilbert <dgilb...@interlog.com>
Cc: Damien Le Moal <damien.lem...@wdc.com>
Cc: Christoph Hellwig <h...@lst.de>
Cc: Lee Duncan <ldun...@suse.com>
Cc: sta...@vger.kernel.org
---
 drivers/scsi/scsi_lib.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 1d83f29aee74..c0e4ae733cce 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -733,8 +733,6 @@ static blk_status_t __scsi_error_from_host_byte(struct 
scsi_cmnd *cmd,
                int result)
 {
        switch (host_byte(result)) {
-       case DID_OK:
-               return BLK_STS_OK;
        case DID_TRANSPORT_FAILFAST:
                return BLK_STS_TRANSPORT;
        case DID_TARGET_FAILURE:
-- 
2.16.2

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