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authorRémi Denis-Courmont <remi.denis-courmont@nokia.com>2009-06-01 00:35:16 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-02 00:17:43 -0700
commitbbd5898d39ab9f855c732f6f07e40e95b05cf52a (patch)
tree383f8dc9aa4727269693d1442c83dd780161c177 /net
parentc930a66220bac0815cca74eef94ada221377ffba (diff)
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Phonet: fix accounting race between gprs_writeable() and gprs_xmit()
In the unlikely event that gprs_writeable() and gprs_xmit() check for writeability at the same, we could stop the device queue forever. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/phonet/pep-gprs.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c
index 4aa888584d2..851f6a3f8dd 100644
--- a/net/phonet/pep-gprs.c
+++ b/net/phonet/pep-gprs.c
@@ -212,8 +212,9 @@ static int gprs_xmit(struct sk_buff *skb, struct net_device *dev)
dev->stats.tx_bytes += len;
}
- if (!pep_writeable(sk))
- netif_stop_queue(dev);
+ netif_stop_queue(dev);
+ if (pep_writeable(sk))
+ netif_wake_queue(dev);
return 0;
}