diff options
| author | James Smart <james.smart@emulex.com> | 2013-05-31 23:05:27 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-06-26 19:48:53 +0200 |
| commit | b230b8a298d1f042fb501a4bbdbc954c927e9ff1 (patch) | |
| tree | adbaecbddc2206607dc34a15d4978a4b273feaa2 /drivers/scsi/lpfc | |
| parent | [SCSI] lpfc 8.3.40: Fixed system panic due to unsafe walking and deleting lin... (diff) | |
| download | linux-b230b8a298d1f042fb501a4bbdbc954c927e9ff1.tar.xz linux-b230b8a298d1f042fb501a4bbdbc954c927e9ff1.zip | |
[SCSI] lpfc 8.3.40: Fixed issue mailbox wait routine failed to issue dump memory mbox command
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 876e61b5036b..bb78e4d45db9 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -10092,12 +10092,13 @@ lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, uint32_t timeout) { DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); + MAILBOX_t *mb = NULL; int retval; unsigned long flag; - /* The caller must leave context1 empty. */ + /* The caller might set context1 for extended buffer */ if (pmboxq->context1) - return MBX_NOT_FINISHED; + mb = (MAILBOX_t *)pmboxq->context1; pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; /* setup wake call as IOCB callback */ @@ -10113,7 +10114,8 @@ lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, msecs_to_jiffies(timeout * 1000)); spin_lock_irqsave(&phba->hbalock, flag); - pmboxq->context1 = NULL; + /* restore the possible extended buffer for free resource */ + pmboxq->context1 = (uint8_t *)mb; /* * if LPFC_MBX_WAKE flag is set the mailbox is completed * else do not free the resources. @@ -10126,6 +10128,9 @@ lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; } spin_unlock_irqrestore(&phba->hbalock, flag); + } else { + /* restore the possible extended buffer for free resource */ + pmboxq->context1 = (uint8_t *)mb; } return retval; |