From: James Smart Date: Fri, 16 Jun 2017 05:56:47 +0000 (-0700) Subject: scsi: lpfc: Fix crash after firmware flash when IO is running. X-Git-Tag: v4.13-rc1~136^2~94 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=569dbe84a3e769009aa4a5d1030d000168889580;p=karo-tx-linux.git scsi: lpfc: Fix crash after firmware flash when IO is running. OS crashes after the completion of firmware download. Failure in posting SCSI SGL buffers because number of SGL buffers is less than total count. Some of the pending IOs are not completed by driver. SGL buffers for these IOs are not added back to the list. Pending IOs are not completed because lpfc_wq_list list is initialized before completion of pending IOs. Postpone lpfc_wq_list reinitialization by moving lpfc_sli4_queue_destroy() after lpfc_hba_down_post(). Signed-off-by: Dick Kennedy Signed-off-by: James Smart Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 4f2cc395597e..8de70b9d79dd 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -4303,7 +4303,6 @@ lpfc_sli4_brdreset(struct lpfc_hba *phba) /* Perform FCoE PCI function reset before freeing queue memory */ rc = lpfc_pci_function_reset(phba); - lpfc_sli4_queue_destroy(phba); /* Restore PCI cmd register */ pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); @@ -4428,6 +4427,7 @@ lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) pci_disable_pcie_error_reporting(phba->pcidev); lpfc_hba_down_post(phba); + lpfc_sli4_queue_destroy(phba); return rc; }