netdev - [patch -next] vmxnet3: locking problems in xmit

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Message-ID: <20101220130315.GY1936@bicker>
Date:	Mon, 20 Dec 2010 16:03:15 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Shreyas Bhatewara <sbhatewara@...are.com>
Cc:	"VMware, Inc." <pv-drivers@...are.com>, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch -next] vmxnet3: locking problems in xmit

There were several paths that didn't release their locks.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 23154cf..939e546 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -980,7 +980,7 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
 		}
 	} else {
 		tq->stats.drop_hdr_inspect_err++;
-		goto drop_pkt;
+		goto unlock_drop_pkt;
 	}
 
 	/* fill tx descs related to addr & len */
@@ -1052,6 +1052,8 @@ vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
 
 hdr_too_big:
 	tq->stats.drop_oversized_hdr++;
+unlock_drop_pkt:
+	spin_unlock_irqrestore(&tq->tx_lock, flags);
 drop_pkt:
 	tq->stats.drop_total++;
 	dev_kfree_skb(skb);
--
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