1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/macintosh/windfarm_pid.c b/drivers/macintosh/windfarm_pid.c
index 2e803b368757..0842432e27ad 100644
--- a/drivers/macintosh/windfarm_pid.c
+++ b/drivers/macintosh/windfarm_pid.c
@@ -88,8 +88,8 @@ EXPORT_SYMBOL_GPL(wf_cpu_pid_init);
 
 s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 new_power, s32 new_temp)
 {
-        s64     error, integ, deriv, prop;
-        s32     target, sval, adj;
+        s64     integ, deriv, prop;
+        s32     error, target, sval, adj;
         int     i, hlen = st->param.history_len;
 
         /* Calculate error term */
@@ -117,7 +117,7 @@ s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 new_power, s32 new_temp)
                 integ += st->errors[(st->index + hlen - i) % hlen];
         integ *= st->param.interval;
         integ *= st->param.gr;
-        sval = st->param.tmax - ((integ >> 20) & 0xffffffff);
+        sval = st->param.tmax - (s32)(integ >> 20);
         adj = min(st->param.ttarget, sval);
 
         DBG("integ: %lx, sval: %lx, adj: %lx\n", integ, sval, adj);
@@ -129,7 +129,7 @@ s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 new_power, s32 new_temp)
         deriv *= st->param.gd;
 
         /* Calculate proportional term */
-        prop = (new_temp - adj);
+        prop = st->last_delta = (new_temp - adj);
         prop *= st->param.gp;
 
         DBG("deriv: %lx, prop: %lx\n", deriv, prop);