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path: root/drivers/net/davinci_emac.c
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Diffstat (limited to 'drivers/net/davinci_emac.c')
-rw-r--r--drivers/net/davinci_emac.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2df8fb0af70..12fd446f989 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1820,11 +1820,19 @@ static int emac_dev_setmac_addr(struct net_device *ndev, void *addr)
struct device *emac_dev = &priv->ndev->dev;
struct sockaddr *sa = addr;
+ if (!is_valid_ether_addr(sa->sa_data))
+ return -EINVAL;
+
/* Store mac addr in priv and rx channel and set it in EMAC hw */
memcpy(priv->mac_addr, sa->sa_data, ndev->addr_len);
- memcpy(rxch->mac_addr, sa->sa_data, ndev->addr_len);
memcpy(ndev->dev_addr, sa->sa_data, ndev->addr_len);
- emac_setmac(priv, EMAC_DEF_RX_CH, rxch->mac_addr);
+
+ /* If the interface is down - rxch is NULL. */
+ /* MAC address is configured only after the interface is enabled. */
+ if (netif_running(ndev)) {
+ memcpy(rxch->mac_addr, sa->sa_data, ndev->addr_len);
+ emac_setmac(priv, EMAC_DEF_RX_CH, rxch->mac_addr);
+ }
if (netif_msg_drv(priv))
dev_notice(emac_dev, "DaVinci EMAC: emac_dev_setmac_addr %pM\n",