cxgb3 - eeprom read fixes

Protect against invalid phy entries in the eeprom.
Extend eeprom access timeout.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 968f64be374..9a0898b0dbc 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -572,7 +572,7 @@ struct t3_vpd {
         u32 pad;                /* for multiple-of-4 sizing and alignment */
 };
 
-#define EEPROM_MAX_POLL   4
+#define EEPROM_MAX_POLL   40
 #define EEPROM_STAT_ADDR  0x4000
 #define VPD_BASE          0xc00
 
@@ -3690,6 +3690,12 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
                         ;
 
                 pti = &port_types[adapter->params.vpd.port_type[j]];
+                if (!pti->phy_prep) {
+                        CH_ALERT(adapter, "Invalid port type index %d\n",
+                                 adapter->params.vpd.port_type[j]);
+                        return -EINVAL;
+                }
+
                 ret = pti->phy_prep(&p->phy, adapter, ai->phy_base_addr + j,
                                     ai->mdio_ops);
                 if (ret)