From 65818fa744e70a58d230083dda1f1cd8e5c5e2ee Mon Sep 17 00:00:00 2001
From: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Date: Wed, 6 Jan 2010 23:07:16 +0000
Subject: [PATCH] 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>
---
drivers/net/stmmac/stmmac_main.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index a02006d57a59..82ebbc0c8839 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -258,8 +258,9 @@ static void stmmac_adjust_link(struct net_device *dev)
} 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))
--
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