diff options
| author |   Ben Hutchings <bhutchings@solarflare.com> | 2013-11-14 00:43:41 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-11-14 16:22:10 -0500 |
| commit | 5f3da3281932a795b80cddd1887291515a7e324d (patch) | |
| tree | a1fb34efac122893d54620a3b7f8ce7e3219f0b4 /drivers/net/ethernet | |
| parent | pch_gbe: Validate hwtstamp_config completely before applying it (diff) | |
| download | linux-dev-5f3da3281932a795b80cddd1887291515a7e324d.tar.xz linux-dev-5f3da3281932a795b80cddd1887291515a7e324d.zip | |
stmmac: Validate hwtstamp_config completely before applying it
stmmac_hwtstamp_ioctl() should validate all fields of hwtstamp_config
before making any changes. Currently it sets the TX configuration
before validating the rx_filter field.
Compile-tested only.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 8d4ccd35a016..8a7a23a84ac5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -435,16 +435,9 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) if (config.flags) return -EINVAL; - switch (config.tx_type) { - case HWTSTAMP_TX_OFF: - priv->hwts_tx_en = 0; - break; - case HWTSTAMP_TX_ON: - priv->hwts_tx_en = 1; - break; - default: + if (config.tx_type != HWTSTAMP_TX_OFF && + config.tx_type != HWTSTAMP_TX_ON) return -ERANGE; - } if (priv->adv_ts) { switch (config.rx_filter) { @@ -576,6 +569,7 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) } } priv->hwts_rx_en = ((config.rx_filter == HWTSTAMP_FILTER_NONE) ? 0 : 1); + priv->hwts_tx_en = config.tx_type == HWTSTAMP_TX_ON; if (!priv->hwts_tx_en && !priv->hwts_rx_en) priv->hw->ptp->config_hw_tstamping(priv->ioaddr, 0); |