tc35815: Fix rx_missed_errors count

The Miss_Cnt register is cleared by reading.  Accumulate its value to
rx_missed_errors count.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index f42aaf72cc95..411cc0e5f7a4 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -2139,7 +2139,7 @@ static struct net_device_stats *tc35815_get_stats(struct net_device *dev)
                 (struct tc35815_regs __iomem *)dev->base_addr;
         if (netif_running(dev))
                 /* Update the statistics from the device registers. */
-                dev->stats.rx_missed_errors = tc_readl(&tr->Miss_Cnt);
+                dev->stats.rx_missed_errors += tc_readl(&tr->Miss_Cnt);
 
         return &dev->stats;
 }