Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstrea...

[sfrench/cifs-2.6.git] / drivers / net / tulip / eeprom.c

diff --git a/drivers/net/tulip/eeprom.c b/drivers/net/tulip/eeprom.c
index 206918bad539b46b12cdc184fcd3b69bb9d5a301..da2206f6021d9881f9bfc362c1d93890c735baf5 100644 (file)
--- a/drivers/net/tulip/eeprom.c
+++ b/drivers/net/tulip/eeprom.c
@@ -343,6 +343,12 @@ int __devinit tulip_read_eeprom(struct net_device *dev, int location, int addr_l
        void __iomem *ee_addr = tp->base_addr + CSR9;
        int read_cmd = location | (EE_READ_CMD << addr_len);
 
+       /* If location is past the end of what we can address, don't
+        * read some other location (ie truncate). Just return zero.
+        */
+       if (location > (1 << addr_len) - 1)
+               return 0;
+
        iowrite32(EE_ENB & ~EE_CS, ee_addr);
        iowrite32(EE_ENB, ee_addr);