diff options
| -rw-r--r-- | drivers/net/phy/dp83640.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 04ad77758920..2781b0e2d947 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -469,6 +469,11 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp, switch (rq->type) { case PTP_CLK_REQ_EXTTS: + /* Reject requests with unsupported flags */ + if (rq->extts.flags & ~(PTP_ENABLE_FEATURE | + PTP_RISING_EDGE | + PTP_FALLING_EDGE)) + return -EOPNOTSUPP; index = rq->extts.index; if (index >= N_EXT_TS) return -EINVAL; |