From c077682282dd34c75e8477c22dffe7c9aebc6e98 Mon Sep 17 00:00:00 2001 From: Nisar Sayed Date: Thu, 21 Sep 2017 02:36:37 +0530 Subject: [PATCH] lan78xx: Allow EEPROM write for less than MAX_EEPROM_SIZE Allow EEPROM write for less than MAX_EEPROM_SIZE Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Signed-off-by: Nisar Sayed Signed-off-by: David S. Miller --- drivers/net/usb/lan78xx.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index fcf85ae37435..f8c63eec8353 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -1290,11 +1290,10 @@ static int lan78xx_ethtool_set_eeprom(struct net_device *netdev, if (ret) return ret; - /* Allow entire eeprom update only */ - if ((ee->magic == LAN78XX_EEPROM_MAGIC) && - (ee->offset == 0) && - (ee->len == 512) && - (data[0] == EEPROM_INDICATOR)) + /* Invalid EEPROM_INDICATOR at offset zero will result in a failure + * to load data from EEPROM + */ + if (ee->magic == LAN78XX_EEPROM_MAGIC) ret = lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data); else if ((ee->magic == LAN78XX_OTP_MAGIC) && (ee->offset == 0) && -- 2.20.1