diff -r f51f3ef3260d -r 8bb574da5da2 master/fsm_foe.c
--- a/master/fsm_foe.c	Thu Feb 14 11:15:25 2013 +0100
+++ b/master/fsm_foe.c	Thu Feb 14 11:17:33 2013 +0100
@@ -370,8 +370,8 @@
 
     if (!ec_slave_mbox_check(fsm->datagram)) {
         // slave did not put anything in the mailbox yet
-        unsigned long diff_ms =
-            (datagram->jiffies_received - fsm->jiffies_start) * 1000 / HZ;
+        unsigned long diff_ms = (fsm->datagram->jiffies_received -
+                fsm->jiffies_start) * 1000 / HZ;
         if (diff_ms >= EC_FSM_FOE_TIMEOUT) {
             ec_foe_set_tx_error(fsm, FOE_TIMEOUT_ERROR);
             EC_SLAVE_ERR(slave, "Timeout while waiting for ack response.\n");
@@ -709,9 +709,8 @@
     }
 
     if (!ec_slave_mbox_check(fsm->datagram)) {
-        unsigned long diff_ms =
-            (fsm->datagram->jiffies_received - fsm->jiffies_start) *
-            1000 / HZ;
+        unsigned long diff_ms = (fsm->datagram->jiffies_received -
+                fsm->jiffies_start) * 1000 / HZ;
         if (diff_ms >= EC_FSM_FOE_TIMEOUT) {
             ec_foe_set_tx_error(fsm, FOE_TIMEOUT_ERROR);
             EC_SLAVE_ERR(slave, "Timeout while waiting for ack response.\n");