diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/lan743x_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan743x_ptp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c index e177b1ae03f1..afe52463dc57 100644 --- a/drivers/net/ethernet/microchip/lan743x_ptp.c +++ b/drivers/net/ethernet/microchip/lan743x_ptp.c @@ -492,6 +492,10 @@ static int lan743x_ptp_perout(struct lan743x_adapter *adapter, int on, unsigned int index = perout_request->index; struct lan743x_ptp_perout *perout = &ptp->perout[index]; + /* Reject requests with unsupported flags */ + if (perout_request->flags) + return -EOPNOTSUPP; + if (on) { perout_pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_PEROUT, perout_request->index); |