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[NETPOLL]: deadlock bugfix 

This fixes an obvious deadlock in the netpoll code.  netpoll_rx takes the
npinfo->rx_lock.  netpoll_rx is also the only caller of arp_reply (through
__netpoll_rx).  As such, it is not necessary to take this lock.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeff Moyer 2005-08-11 19:23:50 -07:00 committed by David S. Miller
parent 11513128bb
commit a636e13579
1 changed files with 0 additions and 3 deletions
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3
net/core/netpoll.c
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@ -353,11 +353,8 @@ static void arp_reply(struct sk_buff *skb)
struct sk_buff *send_skb;
struct netpoll *np = NULL;
spin_lock_irqsave(&npinfo->rx_lock, flags);
if (npinfo->rx_np && npinfo->rx_np->dev == skb->dev)
np = npinfo->rx_np;
spin_unlock_irqrestore(&npinfo->rx_lock, flags);
if (!np)
return;