From da3349771c7ca01415df49929b265c21bc4295c3 Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Wed, 29 Jan 2014 02:16:44 -0500 Subject: [PATCH] [SCSI] be2iscsi: Fix scsi_cmnd leakage in driver. scsi_cmnd n io_task was not NULL when - Link goes down while IO was happening and session is closed. - Task for which TMF was sent. Signed-off-by: John Soni Jose Signed-off-by: Jayamohan Kallickal Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_main.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index b1b6e74..7b2bd16 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -1366,8 +1366,10 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn, resid = csol_cqe->res_cnt; if (!task->sc) { - if (io_task->scsi_cmnd) + if (io_task->scsi_cmnd) { scsi_dma_unmap(io_task->scsi_cmnd); + io_task->scsi_cmnd = NULL; + } return; } @@ -1404,6 +1406,7 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn, conn->rxdata_octets += resid; unmap: scsi_dma_unmap(io_task->scsi_cmnd); + io_task->scsi_cmnd = NULL; iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn); } @@ -4653,6 +4656,11 @@ static void beiscsi_cleanup_task(struct iscsi_task *task) spin_unlock(&phba->io_sgl_lock); io_task->psgl_handle = NULL; } + + if (io_task->scsi_cmnd) { + scsi_dma_unmap(io_task->scsi_cmnd); + io_task->scsi_cmnd = NULL; + } } else { if (!beiscsi_conn->login_in_progress) beiscsi_free_mgmt_task_handles(beiscsi_conn, task); -- 2.7.4