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batman-adv: Drop NULL check before dropping references

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The check if a batman-adv related object is NULL or not is now directly in
the batadv_*_put functions. It is not needed anymore to perform this check
outside these function:

The changes were generated using a coccinelle semantic patch:

  @@
  expression E;
  @@
  - if (likely(E != NULL))
  (
  batadv_backbone_gw_put
  |
  batadv_claim_put
  |
  batadv_dat_entry_put
  |
  batadv_gw_node_put
  |
  batadv_hardif_neigh_put
  |
  batadv_hardif_put
  |
  batadv_nc_node_put
  |
  batadv_nc_path_put
  |
  batadv_neigh_ifinfo_put
  |
  batadv_neigh_node_put
  |
  batadv_orig_ifinfo_put
  |
  batadv_orig_node_put
  |
  batadv_orig_node_vlan_put
  |
  batadv_softif_vlan_put
  |
  batadv_tp_vars_put
  |
  batadv_tt_global_entry_put
  |
  batadv_tt_local_entry_put
  |
  batadv_tt_orig_list_entry_put
  |
  batadv_tt_req_node_put
  |
  batadv_tvlv_container_put
  |
  batadv_tvlv_handler_put
  )(E);

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Sven Eckelmann
2021-08-08 19:11:08 +02:00
committed by Simon Wunderlich
parent 6340dcbd61
commit 79a0bffb83
19 changed files with 169 additions and 337 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
net/batman-adv/bridge_loop_avoidance.c
View File

@@ -445,8 +445,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
netif_rx_any_context(skb);
out:
if (primary_if)
batadv_hardif_put(primary_if);
batadv_hardif_put(primary_if);
}
/**
@@ -1504,8 +1503,7 @@ static void batadv_bla_periodic_work(struct work_struct *work)
rcu_read_unlock();
}
out:
if (primary_if)
batadv_hardif_put(primary_if);
batadv_hardif_put(primary_if);
queue_delayed_work(batadv_event_workqueue, &bat_priv->bla.work,
msecs_to_jiffies(BATADV_BLA_PERIOD_LENGTH));
@@ -1814,8 +1812,7 @@ void batadv_bla_free(struct batadv_priv *bat_priv)
batadv_hash_destroy(bat_priv->bla.backbone_hash);
bat_priv->bla.backbone_hash = NULL;
}
if (primary_if)
batadv_hardif_put(primary_if);
batadv_hardif_put(primary_if);
}
/**
@@ -2002,10 +1999,8 @@ handled:
ret = true;
out:
if (primary_if)
batadv_hardif_put(primary_if);
if (claim)
batadv_claim_put(claim);
batadv_hardif_put(primary_if);
batadv_claim_put(claim);
return ret;
}
@@ -2109,10 +2104,8 @@ allow:
handled:
ret = true;
out:
if (primary_if)
batadv_hardif_put(primary_if);
if (claim)
batadv_claim_put(claim);
batadv_hardif_put(primary_if);
batadv_claim_put(claim);
return ret;
}
@@ -2277,8 +2270,7 @@ int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb)
ret = msg->len;
out:
if (primary_if)
batadv_hardif_put(primary_if);
batadv_hardif_put(primary_if);
dev_put(soft_iface);
@@ -2448,8 +2440,7 @@ int batadv_bla_backbone_dump(struct sk_buff *msg, struct netlink_callback *cb)
ret = msg->len;
out:
if (primary_if)
batadv_hardif_put(primary_if);
batadv_hardif_put(primary_if);
dev_put(soft_iface);