iscsi/iser-target: Use list_del_init for ->i_conn_node

There are a handful of uses of list_empty() for cmd->i_conn_node
within iser-target code that expect to return false once a cmd
has been removed from the per connect list.

This patch changes all uses of list_del -> list_del_init in order
to ensure that list_empty() returns false as expected.

Acked-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org> #3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

3 files changed, 14 insertions, 14 deletions

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index d18d08a076e8..5eb2b88cf947 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1464,7 +1464,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
         case ISCSI_OP_SCSI_CMD:
                 spin_lock_bh(&conn->cmd_lock);
                 if (!list_empty(&cmd->i_conn_node))
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
                 if (cmd->data_direction == DMA_TO_DEVICE)
@@ -1476,7 +1476,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
         case ISCSI_OP_SCSI_TMFUNC:
                 spin_lock_bh(&conn->cmd_lock);
                 if (!list_empty(&cmd->i_conn_node))
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
                 transport_generic_free_cmd(&cmd->se_cmd, 0);
@@ -1486,7 +1486,7 @@ isert_put_cmd(struct isert_cmd *isert_cmd)
         case ISCSI_OP_TEXT:
                 spin_lock_bh(&conn->cmd_lock);
                 if (!list_empty(&cmd->i_conn_node))
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
                 /*
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 7f1a7ce4b771..ece82b0d8ea3 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -785,7 +785,7 @@ static void iscsit_ack_from_expstatsn(struct iscsi_conn *conn, u32 exp_statsn)
         spin_unlock_bh(&conn->cmd_lock);
 
         list_for_each_entry_safe(cmd, cmd_p, &ack_list, i_conn_node) {
-                list_del(&cmd->i_conn_node);
+                list_del_init(&cmd->i_conn_node);
                 iscsit_free_cmd(cmd, false);
         }
 }
@@ -3708,7 +3708,7 @@ iscsit_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state
                 break;
         case ISTATE_REMOVE:
                 spin_lock_bh(&conn->cmd_lock);
-                list_del(&cmd->i_conn_node);
+                list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
                 iscsit_free_cmd(cmd, false);
@@ -4151,7 +4151,7 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn)
         spin_lock_bh(&conn->cmd_lock);
         list_for_each_entry_safe(cmd, cmd_tmp, &conn->conn_cmd_list, i_conn_node) {
 
-                list_del(&cmd->i_conn_node);
+                list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
                 iscsit_increment_maxcmdsn(cmd, sess);
diff --git a/drivers/target/iscsi/iscsi_target_erl2.c b/drivers/target/iscsi/iscsi_target_erl2.c
index 33be1fb1df32..4ca8fd2a70db 100644
--- a/drivers/target/iscsi/iscsi_target_erl2.c
+++ b/drivers/target/iscsi/iscsi_target_erl2.c
@@ -138,7 +138,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess)
                 list_for_each_entry_safe(cmd, cmd_tmp,
                                 &cr->conn_recovery_cmd_list, i_conn_node) {
 
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                         cmd->conn = NULL;
                         spin_unlock(&cr->conn_recovery_cmd_lock);
                         iscsit_free_cmd(cmd, true);
@@ -160,7 +160,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess)
                 list_for_each_entry_safe(cmd, cmd_tmp,
                                 &cr->conn_recovery_cmd_list, i_conn_node) {
 
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                         cmd->conn = NULL;
                         spin_unlock(&cr->conn_recovery_cmd_lock);
                         iscsit_free_cmd(cmd, true);
@@ -216,7 +216,7 @@ int iscsit_remove_cmd_from_connection_recovery(
         }
         cr = cmd->cr;
 
-        list_del(&cmd->i_conn_node);
+        list_del_init(&cmd->i_conn_node);
         return --cr->cmd_count;
 }
 
@@ -297,7 +297,7 @@ int iscsit_discard_unacknowledged_ooo_cmdsns_for_conn(struct iscsi_conn *conn)
                 if (!(cmd->cmd_flags & ICF_OOO_CMDSN))
                         continue;
 
-                list_del(&cmd->i_conn_node);
+                list_del_init(&cmd->i_conn_node);
 
                 spin_unlock_bh(&conn->cmd_lock);
                 iscsit_free_cmd(cmd, true);
@@ -335,7 +335,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
         /*
          * Only perform connection recovery on ISCSI_OP_SCSI_CMD or
          * ISCSI_OP_NOOP_OUT opcodes.  For all other opcodes call
-         * list_del(&cmd->i_conn_node); to release the command to the
+         * list_del_init(&cmd->i_conn_node); to release the command to the
          * session pool and remove it from the connection's list.
          *
          * Also stop the DataOUT timer, which will be restarted after
@@ -351,7 +351,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
                                 " CID: %hu\n", cmd->iscsi_opcode,
                                 cmd->init_task_tag, cmd->cmd_sn, conn->cid);
 
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                         spin_unlock_bh(&conn->cmd_lock);
                         iscsit_free_cmd(cmd, true);
                         spin_lock_bh(&conn->cmd_lock);
@@ -371,7 +371,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
                  */
                 if (!(cmd->cmd_flags & ICF_OOO_CMDSN) && !cmd->immediate_cmd &&
                      iscsi_sna_gte(cmd->cmd_sn, conn->sess->exp_cmd_sn)) {
-                        list_del(&cmd->i_conn_node);
+                        list_del_init(&cmd->i_conn_node);
                         spin_unlock_bh(&conn->cmd_lock);
                         iscsit_free_cmd(cmd, true);
                         spin_lock_bh(&conn->cmd_lock);
@@ -393,7 +393,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn)
 
                 cmd->sess = conn->sess;
 
-                list_del(&cmd->i_conn_node);
+                list_del_init(&cmd->i_conn_node);
                 spin_unlock_bh(&conn->cmd_lock);
 
                 iscsit_free_all_datain_reqs(cmd);