target/iscsi: Rename iscsi_cmd.i_list to iscsi_cmd.i_conn_node

The name change makes it clear this list_head is so the cmd can be an
item in the connection's conn_cmd_list.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index 006f605..f6d1a23 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -526,7 +526,7 @@
 		found_cmd = 0;
 
 		spin_lock_bh(&conn->cmd_lock);
-		list_for_each_entry(cmd, &conn->conn_cmd_list, i_list) {
+		list_for_each_entry(cmd, &conn->conn_cmd_list, i_conn_node) {
 			if (cmd->stat_sn == begrun) {
 				found_cmd = 1;
 				break;