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stmmac: do not call fix_mac_speed if NULL

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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>
This commit is contained in:
Giuseppe CAVALLARO 2010-01-06 23:07:16 +00:00 committed by David S. Miller
parent ca5f12c1a8
commit 65818fa744
1 changed files with 3 additions and 2 deletions
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5
drivers/net/stmmac/stmmac_main.c
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@ -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))