From: Mike Christie Date: Sun, 7 Feb 2021 04:46:00 +0000 (-0600) Subject: scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling X-Git-Tag: v5.12-rc1~5^2~19 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d28d48c699779973ab9a3bd0e5acfa112bd4fdef;p=thirdparty%2Fkernel%2Flinux.git scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling If iscsi_prep_scsi_cmd_pdu() fails we try to add it back to the cmdqueue, but we leave it partially setup. We don't have functions that can undo the pdu and init task setup. We only have cleanup_task which can clean up both parts. So this has us just fail the cmd and go through the standard cleanup routine and then have the SCSI midlayer retry it like is done when it fails in the queuecommand path. Link: https://lore.kernel.org/r/20210207044608.27585-2-michael.christie@oracle.com Reviewed-by: Lee Duncan Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 4e668aafbcca0..cee1dbaa1b932 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1532,14 +1532,9 @@ check_mgmt: } rc = iscsi_prep_scsi_cmd_pdu(conn->task); if (rc) { - if (rc == -ENOMEM || rc == -EACCES) { - spin_lock_bh(&conn->taskqueuelock); - list_add_tail(&conn->task->running, - &conn->cmdqueue); - conn->task = NULL; - spin_unlock_bh(&conn->taskqueuelock); - goto done; - } else + if (rc == -ENOMEM || rc == -EACCES) + fail_scsi_task(conn->task, DID_IMM_RETRY); + else fail_scsi_task(conn->task, DID_ABORT); spin_lock_bh(&conn->taskqueuelock); continue;