• Stephen M. Cameron's avatar
    [SCSI] hpsa: fix handling of protocol error · 256d0eaa
    Stephen M. Cameron authored
    If a command status of CMD_PROTOCOL_ERR is received, this
    information should be conveyed to the SCSI mid layer, not
    dropped on the floor.  CMD_PROTOCOL_ERR may be received
    from the Smart Array for any commands destined for an external
    RAID controller such as a P2000, or commands destined for tape
    drives or CD/DVD-ROM drives, if for instance a cable is
    disconnected.  This mostly affects multipath configurations, as
    disconnecting a cable on a non-multipath configuration is not
    going to do anything good regardless of whether CMD_PROTOCOL_ERR
    is handled correctly or not.  Not handling CMD_PROTOCOL_ERR
    correctly in a multipath configaration involving external RAID
    controllers may cause data corruption, so this is quite a serious
    bug.  This bug should not normally cause a problem for direct
    attached disk storage.
    Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
    256d0eaa
hpsa.c 143 KB