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-rw-r--r--drivers/net/ibm_emac/ibm_emac_phy.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ibm_emac/ibm_emac_phy.c b/drivers/net/ibm_emac/ibm_emac_phy.c
index 4a97024061e..9074f76ee2b 100644
--- a/drivers/net/ibm_emac/ibm_emac_phy.c
+++ b/drivers/net/ibm_emac/ibm_emac_phy.c
@@ -309,7 +309,7 @@ int mii_phy_probe(struct mii_phy *phy, int address)
{
struct mii_phy_def *def;
int i;
- u32 id;
+ int id;
phy->autoneg = AUTONEG_DISABLE;
phy->advertising = 0;
@@ -324,6 +324,8 @@ int mii_phy_probe(struct mii_phy *phy, int address)
/* Read ID and find matching entry */
id = (phy_read(phy, MII_PHYSID1) << 16) | phy_read(phy, MII_PHYSID2);
+ if (id < 0)
+ return -ENODEV;
for (i = 0; (def = mii_phy_table[i]) != NULL; i++)
if ((id & def->phy_id_mask) == def->phy_id)
break;