stmmac: do not call fix_mac_speed if NULL
On some platforms, fix_mac_speed is used for
configuring some sysconf registers according
to the working speed.
This patch fixes the fix_mac_speed invocation
that cannot be done if it is a NULL pointer.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index a02006d..82ebbc0 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -258,8 +258,9 @@
} else {
ctrl &= ~priv->mac_type->hw.link.port;
}
- priv->fix_mac_speed(priv->bsp_priv,
- phydev->speed);
+ if (likely(priv->fix_mac_speed))
+ priv->fix_mac_speed(priv->bsp_priv,
+ phydev->speed);
break;
default:
if (netif_msg_link(priv))