1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index c3c59d763037..10a233e65bc9 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -864,8 +864,9 @@ static void qla4xxx_flush_active_srbs(struct scsi_qla_host *ha)
  * qla4xxx_recover_adapter - recovers adapter after a fatal error
  * @ha: Pointer to host adapter structure.
  * @renew_ddb_list: Indicates what to do with the adapter's ddb list
- *      after adapter recovery has completed.
- *      0=preserve ddb list, 1=destroy and rebuild ddb list
+ *
+ * renew_ddb_list value can be 0=preserve ddb list, 1=destroy and rebuild
+ * ddb list.
  **/
 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha,
                                 uint8_t renew_ddb_list)
@@ -874,6 +875,7 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha,
 
         /* Stall incoming I/O until we are done */
         clear_bit(AF_ONLINE, &ha->flags);
+
         DEBUG2(printk("scsi%ld: %s calling qla4xxx_cmd_wait\n", ha->host_no,
                       __func__));
 
@@ -1600,9 +1602,12 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
                 return FAILED;
         }
 
-        if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS) {
+        /* make sure the dpc thread is stopped while we reset the hba */
+        clear_bit(AF_ONLINE, &ha->flags);
+        flush_workqueue(ha->dpc_thread);
+
+        if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS)
                 return_status = SUCCESS;
-        }
 
         dev_info(&ha->pdev->dev, "HOST RESET %s.\n",
                    return_status == FAILED ? "FAILED" : "SUCCEDED");