netdev - [PATCH net v3 3/3] igb: fix nvm.ops.read() error handling

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Message-Id: <20230612205208.115292-4-anthony.l.nguyen@intel.com>
Date: Mon, 12 Jun 2023 13:52:08 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Aleksandr Loktionov <aleksandr.loktionov@...el.com>,
	anthony.l.nguyen@...el.com,
	maciej.fijalkowski@...el.com
Subject: [PATCH net v3 3/3] igb: fix nvm.ops.read() error handling

From: Aleksandr Loktionov <aleksandr.loktionov@...el.com>

Add error handling into igb_set_eeprom() function, in case
nvm.ops.read() fails just quit with error code asap.

Fixes: 9d5c824399de ("igb: PCI-Express 82575 Gigabit Ethernet driver")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 7d60da1b7bf4..319ed601eaa1 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -822,6 +822,8 @@ static int igb_set_eeprom(struct net_device *netdev,
 		 */
 		ret_val = hw->nvm.ops.read(hw, last_word, 1,
 				   &eeprom_buff[last_word - first_word]);
+		if (ret_val)
+			goto out;
 	}
 
 	/* Device's eeprom is always little-endian, word addressable */
@@ -841,6 +843,7 @@ static int igb_set_eeprom(struct net_device *netdev,
 		hw->nvm.ops.update(hw);
 
 	igb_set_fw_version(adapter);
+out:
 	kfree(eeprom_buff);
 	return ret_val;
 }
-- 
2.38.1