diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 78b004da288..cbe38e5e795 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -189,6 +189,7 @@ scsi_abort_command(struct scsi_cmnd *scmd) /* * Retry after abort failed, escalate to next level. */ + scmd->eh_eflags &= ~SCSI_EH_ABORT_SCHEDULED; SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_INFO, scmd, "scmd %p previous abort failed\n", scmd)); @@ -920,10 +921,12 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, ses->prot_op = scmd->prot_op; scmd->prot_op = SCSI_PROT_NORMAL; + scmd->eh_eflags = 0; scmd->cmnd = ses->eh_cmnd; memset(scmd->cmnd, 0, BLK_MAX_CDB); memset(&scmd->sdb, 0, sizeof(scmd->sdb)); scmd->request->next_rq = NULL; + scmd->result = 0; if (sense_bytes) { scmd->sdb.length = min_t(unsigned, SCSI_SENSE_BUFFERSIZE, @@ -1026,6 +1029,7 @@ retry: rtn = NEEDS_RETRY; } else { timeleft = wait_for_completion_timeout(&done, timeout); + rtn = SUCCESS; } shost->eh_action = NULL; @@ -1157,6 +1161,15 @@ int scsi_eh_get_sense(struct list_head *work_q, __func__)); break; } + if (status_byte(scmd->result) != CHECK_CONDITION) + /* + * don't request sense if there's no check condition + * status because the error we're processing isn't one + * that has a sense code (and some devices get + * confused by sense requests out of the blue) + */ + continue; + SCSI_LOG_ERROR_RECOVERY(2, scmd_printk(KERN_INFO, scmd, "%s: requesting sense\n", current->comm)); @@ -1939,6 +1952,8 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) */ req = blk_get_request(sdev->request_queue, READ, GFP_KERNEL); + blk_rq_set_block_pc(req); + req->cmd[0] = ALLOW_MEDIUM_REMOVAL; req->cmd[1] = 0; req->cmd[2] = 0; @@ -1948,7 +1963,6 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) req->cmd_len = COMMAND_SIZE(req->cmd[0]); - req->cmd_type = REQ_TYPE_BLOCK_PC; req->cmd_flags |= REQ_QUIET; req->timeout = 10 * HZ; req->retries = 5; @@ -2288,7 +2302,18 @@ scsi_reset_provider(struct scsi_device *dev, int flag) if (scsi_autopm_get_host(shost) < 0) return FAILED; + if (!get_device(&dev->sdev_gendev)) { + rtn = FAILED; + goto out_put_autopm_host; + } + scmd = scsi_get_command(dev, GFP_KERNEL); + if (!scmd) { + rtn = FAILED; + put_device(&dev->sdev_gendev); + goto out_put_autopm_host; + } + blk_rq_init(NULL, &req); scmd->request = &req; @@ -2345,6 +2370,7 @@ scsi_reset_provider(struct scsi_device *dev, int flag) scsi_run_host_queues(shost); scsi_next_command(scmd); +out_put_autopm_host: scsi_autopm_put_host(shost); return rtn; } |