board:tricorder: always work with valid eeprom data

Commit 890880583d84607e36b52a785a96b167728bbf73 introduced EEPROM parsing and
board detection but faild to return a valid tricorder_eeprom struct for backup
case.  When pressing S200 while reading EEPROM we ignore the value. We
returned falsely a tricorder_eeprom struct with uninitialized data which is
just garbage.
Initialize it by zeroing the whole structure.

Signed-off-by: Andreas Bießmann <andreas.biessmann@corscience.de>
Cc: Thomas Weber <thomas.weber@corscience.de>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

diff --git a/board/corscience/tricorder/tricorder.c b/board/corscience/tricorder/tricorder.c
index 2dfcb271d326812b01343715c4a09dfbfc8c743f..9e81bf3f3f94f645ac70563ad2c7563744b9d2b7 100644 (file)
--- a/board/corscience/tricorder/tricorder.c
+++ b/board/corscience/tricorder/tricorder.c
@@ -79,6 +79,8 @@ static void get_eeprom(struct tricorder_eeprom *eeprom)
                } else {
                        panic("Could not get board revision\n");
                }
+       } else {
+               memset(eeprom, 0, TRICORDER_EEPROM_SIZE);
        }
 }