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[NETPOLL]: Set poll_owner to -1 before unlocking in netpoll_poll_unlock()

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This trivial patch moves the assignment of poll_owner to -1 inside of
the lock.  This fixes a potential SMP race in the code.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeff Moyer 2005-06-22 22:04:55 -07:00 • committed by David S. Miller
parent f31f5f0512
commit 6ca4f65e6b
1 changed files with 1 additions and 1 deletions
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2
include/linux/netpoll.h
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@ -53,8 +53,8 @@ static inline void netpoll_poll_lock(struct net_device *dev)
static inline void netpoll_poll_unlock(struct net_device *dev) static inline void netpoll_poll_unlock(struct net_device *dev)
{ {
if (dev->np) { if (dev->np) {
spin_unlock(&dev->np->poll_lock);
dev->np->poll_owner = -1; dev->np->poll_owner = -1;
spin_unlock(&dev->np->poll_lock);
} }
} }