[PATCH] paride cleanup and fixes (9/25)

Equivalent transformation:
	do_pd_reqeust1() calls lambda-expanded, function killed.
	resulting call of ps_set_intr() in next_request() has been
	moved past dropping pd_lock.

drivers/block/paride/pd.c

@@ -742,8 +742,10 @@ static int pd_ready(void)
 	return !(status_reg(pd_current) & STAT_BUSY);
 }
 
-static void do_pd_request1(request_queue_t * q)
+static void do_pd_request(request_queue_t * q)
 {
+	if (pd_req)
+		return;
 	pd_req = elv_next_request(q);
 	if (!pd_req)
 		return;
@@ -752,13 +754,6 @@ static void do_pd_request1(request_queue_t * q)
 	ps_set_intr();
 }
 
-static void do_pd_request(request_queue_t * q)
-{
-	if (pd_req)
-		return;
-	do_pd_request1(q);
-}
-
 static int pd_next_buf(void)
 {
 	unsigned long saved_flags;
@@ -785,8 +780,15 @@ static inline void next_request(int success)
 
 	spin_lock_irqsave(&pd_lock, saved_flags);
 	end_request(pd_req, success);
-	do_pd_request1(pd_queue);
+	pd_req = elv_next_request(pd_queue);
+	if (!pd_req) {
+		spin_unlock_irqrestore(&pd_lock, saved_flags);
+		return;
+	}
 	spin_unlock_irqrestore(&pd_lock, saved_flags);
+
+	ps_continuation = do_pd_io;
+	ps_set_intr();
 }
 
 static void do_pd_io(void)