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tg3: Fix stats while interface is down

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If the tg3 interface is down, the driver will return ethtool stats
uninitialized.  This patch zeroes out the destination stat buffer in
such a case.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2012-02-13 15:20:09 +00:00 • committed by David S. Miller
parent 3906969189
commit b546e46f5c
1 changed files with 4 additions and 4 deletions

8
drivers/net/ethernet/broadcom/tg3.c
View file

@ -10154,9 +10154,6 @@ static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp,
struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
struct tg3_hw_stats *hw_stats = tp->hw_stats;
if (!hw_stats)
return old_estats;
ESTAT_ADD(rx_octets);
ESTAT_ADD(rx_fragments);
ESTAT_ADD(rx_ucast_packets);
@ -11029,7 +11026,10 @@ static void tg3_get_ethtool_stats(struct net_device *dev,
{
struct tg3 *tp = netdev_priv(dev);
tg3_get_estats(tp, (struct tg3_ethtool_stats *)tmp_stats);
if (tp->hw_stats)
tg3_get_estats(tp, (struct tg3_ethtool_stats *)tmp_stats);
else
memset(tmp_stats, 0, sizeof(struct tg3_ethtool_stats));
}
static __be32 *tg3_vpd_readblock(struct tg3 *tp, u32 *vpdlen)