From: James Smart Date: Fri, 2 Jun 2017 04:07:01 +0000 (-0700) Subject: scsi: lpfc: Fix Port going offline after multiple resets. X-Git-Tag: v4.13-rc1~136^2~133 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=14041bd170c28f652a91f6ac343acbabfdf1ef4b;p=karo-tx-linux.git scsi: lpfc: Fix Port going offline after multiple resets. Observing lpfc port down after issuing hbacmd reset command Failure in posting SGL buffers. If there is only one SGL buffer and rrq is valid for its XRI, we are rightly returning NULL but not adding the buffer back to the SGL list. So, number of buffers become less than total count and repost fails during reset. Add SGL buffer back to list before returning NULL. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index d6b184839bc2..e81fa7d4deb5 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -968,6 +968,7 @@ __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq) list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list); if (sglq == start_sglq) { + list_add_tail(&sglq->list, lpfc_els_sgl_list); sglq = NULL; break; } else