NET: atlx, fix memory leak

Stanse found a memory leak in atl2_get_eeprom. eeprom_buff is not
freed/assigned on all paths. Fix that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jay Cliburn <jcliburn@gmail.com>
Cc: Chris Snook <chris.snook@gmail.com>
Cc: Jie Yang <jie.yang@atheros.com>
Cc: atl1-devel@lists.sourceforge.net
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/net/atlx/atl2.c b/drivers/net/atlx/atl2.c
index c0451d75cdc..ec52529394a 100644
--- a/drivers/net/atlx/atl2.c
+++ b/drivers/net/atlx/atl2.c
@@ -1959,12 +1959,15 @@ static int atl2_get_eeprom(struct net_device *netdev,
                 return -ENOMEM;
 
         for (i = first_dword; i < last_dword; i++) {
-                if (!atl2_read_eeprom(hw, i*4, &(eeprom_buff[i-first_dword])))
-                        return -EIO;
+                if (!atl2_read_eeprom(hw, i*4, &(eeprom_buff[i-first_dword]))) {
+                        ret_val = -EIO;
+                        goto free;
+                }
         }
 
         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
                 eeprom->len);
+free:
         kfree(eeprom_buff);
 
         return ret_val;