iscsi-target: Add missing CMDSN_LOWER_THAN_EXP check in iscsit_handle_scsi_cmd

This patch adds a missing CMDSN_LOWER_THAN_EXP return check for
iscsit_sequence_cmd() in iscsit_handle_scsi_cmd() that was incorrectly
dropped during the v3.1-rc cleanups to use iscsit_sequence_cmd().

Cc: Andy Grover <agrover@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 4d01768fcd90..7855a63d49fc 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1079,7 +1079,9 @@ attach_cmd:
          */
         if (!cmd->immediate_data) {
                 cmdsn_ret = iscsit_sequence_cmd(conn, cmd, hdr->cmdsn);
-                if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
+                if (cmdsn_ret == CMDSN_LOWER_THAN_EXP)
+                        return 0;
+                else if (cmdsn_ret == CMDSN_ERROR_CANNOT_RECOVER)
                         return iscsit_add_reject_from_cmd(
                                 ISCSI_REASON_PROTOCOL_ERROR,
                                 1, 0, buf, cmd);