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 <[e-mail]>
Cc: Jay Cliburn <[e-mail]>
Cc: Chris Snook <[e-mail]>
Cc: Jie Yang <[e-mail]>
Cc: [e-mail]
Cc: "David S. Miller" <[e-mail]>
Cc: [e-mail]
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/atlx/atl2.c

···
 		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;