target/iscsi: Detect conn_cmd_list corruption early

[linux-2.6-microblaze.git] / drivers / target / iscsi / iscsi_target_util.c

diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 1e36f83..70c6b9b 100644 (file)
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -694,6 +694,8 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd)
        struct iscsi_session *sess;
        struct se_cmd *se_cmd = &cmd->se_cmd;
 
+       WARN_ON(!list_empty(&cmd->i_conn_node));
+
        if (cmd->conn)
                sess = cmd->conn->sess;
        else
@@ -716,6 +718,8 @@ void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool check_queues)
 {
        struct iscsi_conn *conn = cmd->conn;
 
+       WARN_ON(!list_empty(&cmd->i_conn_node));
+
        if (cmd->data_direction == DMA_TO_DEVICE) {
                iscsit_stop_dataout_timer(cmd);
                iscsit_free_r2ts_from_list(cmd);