diff mbox

[net-next] sunvnet: fix potential NULL pointer dereference

Message ID 542C1837.6090009@oracle.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

David L Stevens Oct. 1, 2014, 3:05 p.m. UTC
One of the error cases for vnet_start_xmit()'s "out_dropped" label
is port == NULL, so only mess with port->clean_timer when port is not NULL.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
---
 drivers/net/ethernet/sun/sunvnet.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Comments

David Miller Oct. 1, 2014, 7:26 p.m. UTC | #1
From: David L Stevens <david.stevens@oracle.com>
Date: Wed, 01 Oct 2014 11:05:27 -0400

> One of the error cases for vnet_start_xmit()'s "out_dropped" label
> is port == NULL, so only mess with port->clean_timer when port is not NULL.
> 
> Signed-off-by: David L Stevens <david.stevens@oracle.com>

Applied, thanks David.
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diff mbox

Patch

diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
index 1262697..1539672 100644
--- a/drivers/net/ethernet/sun/sunvnet.c
+++ b/drivers/net/ethernet/sun/sunvnet.c
@@ -1073,7 +1073,7 @@  out_dropped:
 	if (pending)
 		(void)mod_timer(&port->clean_timer,
 				jiffies + VNET_CLEAN_TIMEOUT);
-	else
+	else if (port)
 		del_timer(&port->clean_timer);
 	dev->stats.tx_dropped++;
 	return NETDEV_TX_OK;