Commit 6ca4f65e authored Jun 22, 2005 by Jeff Moyer Committed by David S. Miller Jun 22, 2005

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



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>

parent f31f5f05

include/linux/netpoll.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -53,8 +53,8 @@ static inline void netpoll_poll_lock(struct net_device *dev)
		static inline void netpoll_poll_unlock(struct net_device *dev)
		{
		if (dev->np) {
		spin_unlock(&dev->np->poll_lock);
		dev->np->poll_owner = -1;
		spin_unlock(&dev->np->poll_lock);
		}
		}