sh: Sanitize sparse irq

Switch over to the new allocator functions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cpu/irq/ipr.c

@@ -62,13 +62,13 @@ void register_ipr_controller(struct ipr_desc *desc)
 
 	for (i = 0; i < desc->nr_irqs; i++) {
 		struct ipr_data *p = desc->ipr_data + i;
-		struct irq_desc *irq_desc;
+		int res;
 
 		BUG_ON(p->ipr_idx >= desc->nr_offsets);
 		BUG_ON(!desc->ipr_offsets[p->ipr_idx]);
 
-		irq_desc = irq_to_desc_alloc_node(p->irq, numa_node_id());
-		if (unlikely(!irq_desc)) {
+		res = irq_alloc_desc_at(p->irq, numa_node_id());
+		if (unlikely(res != p->irq && res != -EEXIST))
 			printk(KERN_INFO "can not get irq_desc for %d\n",
 			       p->irq);
 			continue;

drivers/sh/intc/core.c

@@ -300,13 +300,13 @@ int __init register_intc_controller(struct intc_desc *desc)
 	for (i = 0; i < hw->nr_vectors; i++) {
 		struct intc_vect *vect = hw->vectors + i;
 		unsigned int irq = evt2irq(vect->vect);
-		struct irq_desc *irq_desc;
+		int res;
 
 		if (!vect->enum_id)
 			continue;
 
-		irq_desc = irq_to_desc_alloc_node(irq, numa_node_id());
-		if (unlikely(!irq_desc)) {
+		res = irq_alloc_desc_at(irq, numa_node_id());
+		if (res != irq && res != -EEXIST) {
 			pr_err("can't get irq_desc for %d\n", irq);
 			continue;
 		}
@@ -326,8 +326,8 @@ int __init register_intc_controller(struct intc_desc *desc)
 			 * IRQ support, each vector still needs to have
 			 * its own backing irq_desc.
 			 */
-			irq_desc = irq_to_desc_alloc_node(irq2, numa_node_id());
-			if (unlikely(!irq_desc)) {
+			res = irq_alloc_desc_at(irq2, numa_node_id());
+			if (res != irq2 && res != -EEXIST) {
 				pr_err("can't get irq_desc for %d\n", irq2);
 				continue;
 			}

drivers/sh/intc/dynamic.c

@@ -37,7 +37,6 @@ unsigned int create_irq_nr(unsigned int irq_want, int node)
 {
 	unsigned int irq = 0, new;
 	unsigned long flags;
-	struct irq_desc *desc;
 
 	raw_spin_lock_irqsave(&vector_lock, flags);
 
@@ -55,24 +54,20 @@ unsigned int create_irq_nr(unsigned int irq_want, int node)
 		__set_bit(new, intc_irq_map);
 	}
 
-	desc = irq_to_desc_alloc_node(new, node);
-	if (unlikely(!desc)) {
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+
+	irq = irq_alloc_desc_at(new, node);
+	if (unlikely(irq != new)) {
 		pr_err("can't get irq_desc for %d\n", new);
-		goto out_unlock;
+		return 0;
 	}
 
-	desc = move_irq_desc(desc, node);
-	irq = new;
+	activate_irq(irq);
+	return 0;
 
 out_unlock:
 	raw_spin_unlock_irqrestore(&vector_lock, flags);
-
-	if (irq > 0) {
-		dynamic_irq_init(irq);
-		activate_irq(irq);
-	}
-
-	return irq;
+	return 0;
 }
 
 int create_irq(void)
@@ -91,7 +86,7 @@ void destroy_irq(unsigned int irq)
 {
 	unsigned long flags;
 
-	dynamic_irq_cleanup(irq);
+	irq_free_desc(irq);
 
 	raw_spin_lock_irqsave(&vector_lock, flags);
 	__clear_bit(irq, intc_irq_map);