From: Divy Le Ray <divy@chelsio.com>
Date: Sun, 9 Nov 2008 08:55:28 +0000 (-0800)
Subject: cxgb3 - eeprom read fixes
X-Git-Tag: v2.6.28-rc5~58^2~5^2~3
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9f64306b8a3949b74cb11d3b2f613e8a2af20fa6;p=karo-tx-linux.git

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>
---

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 968f64be3743..9a0898b0dbce 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)