diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2013-11-14 04:42:50 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-11-15 01:22:10 +0400 |
| commit | 810abe9bb3619c717115ae88a09a92cb35a83171 (patch) | |
| tree | 85178bf18375bd5bfe6bdc330831e397b2493f78 /drivers/net | |
| parent | 62d7e3a2d00675970bc7afccc2e407e1df8f1d0f (diff) | |
| download | linux-810abe9bb3619c717115ae88a09a92cb35a83171.tar.xz | |
pch_gbe: Validate hwtstamp_config completely before applying it
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')
| -rw-r--r-- | drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 5a0f04c2c813..27ffe0ebf0a6 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -245,16 +245,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) /* Get ieee1588's dev information */ pdev = adapter->ptp_pdev; - switch (cfg.tx_type) { - case HWTSTAMP_TX_OFF: - adapter->hwts_tx_en = 0; - break; - case HWTSTAMP_TX_ON: - adapter->hwts_tx_en = 1; - break; - default: + if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) return -ERANGE; - } switch (cfg.rx_filter) { case HWTSTAMP_FILTER_NONE: @@ -284,6 +276,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) return -ERANGE; } + adapter->hwts_tx_en = cfg.tx_type == HWTSTAMP_TX_ON; + /* Clear out any old time stamps. */ pch_ch_event_write(pdev, TX_SNAPSHOT_LOCKED | RX_SNAPSHOT_LOCKED); |