From: Aleksandr Loktionov aleksandr.loktionov@intel.com
[ Upstream commit 48a821fd58837800750ec1b3962f0f799630a844 ]
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@intel.com Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 ff911af16a4b5..96fa1c420f910 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; }