Since timespec64_valid() has been checked before ptp->info->settime64(),
the duplicate check in lan743x_ptpci_settime64() can be removed.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v2:
- Check it in ptp core instead of using NSEC_PER_SEC macro.
- Remove the NULL check.
---
 drivers/net/ethernet/microchip/lan743x_ptp.c | 35 ++++++++------------
 1 file changed, 14 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c
index dcea6652d56d..4a777b449ecd 100644
--- a/drivers/net/ethernet/microchip/lan743x_ptp.c
+++ b/drivers/net/ethernet/microchip/lan743x_ptp.c
@@ -401,28 +401,21 @@ static int lan743x_ptpci_settime64(struct ptp_clock_info *ptpci,
 	u32 nano_seconds = 0;
 	u32 seconds = 0;
 
-	if (ts) {
-		if (ts->tv_sec > 0xFFFFFFFFLL ||
-		    ts->tv_sec < 0) {
-			netif_warn(adapter, drv, adapter->netdev,
-				   "ts->tv_sec out of range, %lld\n",
-				   ts->tv_sec);
-			return -ERANGE;
-		}
-		if (ts->tv_nsec >= 1000000000L ||
-		    ts->tv_nsec < 0) {
-			netif_warn(adapter, drv, adapter->netdev,
-				   "ts->tv_nsec out of range, %ld\n",
-				   ts->tv_nsec);
-			return -ERANGE;
-		}
-		seconds = ts->tv_sec;
-		nano_seconds = ts->tv_nsec;
-		lan743x_ptp_clock_set(adapter, seconds, nano_seconds, 0);
-	} else {
-		netif_warn(adapter, drv, adapter->netdev, "ts == NULL\n");
-		return -EINVAL;
+	if (ts->tv_sec > 0xFFFFFFFFLL) {
+		netif_warn(adapter, drv, adapter->netdev,
+			   "ts->tv_sec out of range, %lld\n",
+			   ts->tv_sec);
+		return -ERANGE;
+	}
+	if (ts->tv_nsec < 0) {
+		netif_warn(adapter, drv, adapter->netdev,
+			   "ts->tv_nsec out of range, %ld\n",
+			   ts->tv_nsec);
+		return -ERANGE;
 	}
+	seconds = ts->tv_sec;
+	nano_seconds = ts->tv_nsec;
+	lan743x_ptp_clock_set(adapter, seconds, nano_seconds, 0);
 
 	return 0;
 }
-- 
2.34.1