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authorFlorian Fainelli <florian@openwrt.org>2012-08-08 21:51:13 +0000
committerFlorian Fainelli <florian@openwrt.org>2012-08-08 21:51:13 +0000
commit6f503e42e080097cbfc1397ba887cd7edb378819 (patch)
treeb68cdbcb3cc6fa0d4e1bce5843e99245fb562628 /target/linux/mcs814x
parent8aa941f17a24f1ed67664be86537bd86ad26fdc6 (diff)
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[mcs814x] nuport-mac: close possible race condition during start
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33069 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/mcs814x')
-rw-r--r--target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c b/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
index ebf95a6533..8cd3d0e6b6 100644
--- a/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
+++ b/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
@@ -809,7 +809,11 @@ static int nuport_mac_open(struct net_device *dev)
nuport_mac_reset_rx_dma(priv);
/* Start RX DMA */
- return nuport_mac_start_rx_dma(priv, priv->rx_skb[0]);
+ spin_lock_irqsave(&priv->lock, flags);
+ ret = nuport_mac_start_rx_dma(priv, priv->rx_skb[0]);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return ret;
out_rx_skb:
nuport_mac_free_rx_ring(priv);