i2c/i2c-elektor: remove

@@ -110,7 +110,7 @@ static int pcf_isa_getclock(void *data)
 }
 
 static void pcf_isa_waitforpin(void) {
-
+	DEFINE_WAIT(wait);
 	int timeout = 2;
 	long flags;
 

@@ -118,14 +118,15 @@ static void pcf_isa_waitforpin(void) {
 		spin_lock_irqsave(&lock, flags);
 		if (pcf_pending == 0) {
 			spin_unlock_irqrestore(&lock, flags);
-			if (interruptible_sleep_on_timeout(&pcf_wait,
-								timeout*HZ)) {
+			prepare_to_wait(&pcf_wait, &wait, TASK_INTERRUPTIBLE);
+			if (schedule_timeout(timeout*HZ)) {
 				spin_lock_irqsave(&lock, flags);
 				if (pcf_pending == 1) {
 					pcf_pending = 0;
 				}
 				spin_unlock_irqrestore(&lock, flags);
 			}
+			finish_wait(&pcf_wait, &wait);
 		} else {
 			pcf_pending = 0;
 			spin_unlock_irqrestore(&lock, flags);