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drivers/block: Use RCU_INIT_POINTER(x, NULL) in drbd/drbd_state.c 

This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)

The rcu_assign_pointer() ensures that the initialization of a structure
is carried out before storing a pointer to that structure.
And in the case of the NULL pointer, there is no structure to initialize.
So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL)

Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Monam Agarwal 2014-03-23 02:02:29 +05:30 committed by Philipp Reisner
parent 0c066bc39e
commit ccdd6a93ee
1 changed files with 1 additions and 1 deletions
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2
drivers/block/drbd/drbd_state.c
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@ -1570,7 +1570,7 @@ static int w_after_conn_state_ch(struct drbd_work *w, int unused)
old_conf = connection->net_conf; old_conf = connection->net_conf;
connection->my_addr_len = 0; connection->my_addr_len = 0;
connection->peer_addr_len = 0; connection->peer_addr_len = 0;
rcu_assign_pointer(connection->net_conf, NULL); RCU_INIT_POINTER(connection->net_conf, NULL);
conn_free_crypto(connection); conn_free_crypto(connection);
mutex_unlock(&connection->resource->conf_update); mutex_unlock(&connection->resource->conf_update);