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>

diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index f42aaf7..411cc0e 100644 (file)
--- 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;
 }