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net/core: Use RCU_INIT_POINTER(x, NULL) in netpoll.c

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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: David S. Miller <davem@davemloft.net>
This commit is contained in:
Monam Agarwal 2014-03-24 00:42:46 +05:30 committed by David S. Miller
parent cd18721e52
commit fcb144b5df
1 changed files with 1 additions and 1 deletions
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2
net/core/netpoll.c
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@ -809,7 +809,7 @@ void __netpoll_cleanup(struct netpoll *np)
if (ops->ndo_netpoll_cleanup)
ops->ndo_netpoll_cleanup(np->dev);
rcu_assign_pointer(np->dev->npinfo, NULL);
RCU_INIT_POINTER(np->dev->npinfo, NULL);
call_rcu_bh(&npinfo->rcu, rcu_cleanup_netpoll_info);
}
}