Merge branch 'merge'

1 files changed, 12 insertions, 3 deletions

diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 603203276ef6..603dff3ad62a 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -642,7 +642,7 @@ void of_irq_map_init(unsigned int flags)
 
 }
 
-int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 		const u32 *addr, struct of_irq *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
@@ -650,6 +650,9 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
+	DBG("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
+	    parent->full_name, intspec[0], intspec[1], ointsize);
+
 	ipar = of_node_get(parent);
 
 	/* First get the #interrupt-cells property of the current cursor
@@ -673,6 +676,9 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
 
 	DBG("of_irq_map_raw: ipar=%s, size=%d\n", ipar->full_name, intsize);
 
+	if (ointsize != intsize)
+		return -EINVAL;
+
 	/* Look for this #address-cells. We have to implement the old linux
 	 * trick of looking for the parent here as some device-trees rely on it
 	 */
@@ -879,12 +885,15 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 	}
 	intsize = *tmp;
 
+	DBG(" intsize=%d intlen=%d\n", intsize, intlen);
+
 	/* Check index */
 	if ((index + 1) * intsize > intlen)
 		return -EINVAL;
 
 	/* Get new specifier and map it */
-	res = of_irq_map_raw(p, intspec + index * intsize, addr, out_irq);
+	res = of_irq_map_raw(p, intspec + index * intsize, intsize,
+			     addr, out_irq);
 	of_node_put(p);
 	return res;
 }
@@ -969,7 +978,7 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 	laddr[0] = (pdev->bus->number << 16)
 		| (pdev->devfn << 8);
 	laddr[1]  = laddr[2] = 0;
-	return of_irq_map_raw(ppnode, &lspec, laddr, out_irq);
+	return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq);
 }
 EXPORT_SYMBOL_GPL(of_irq_map_pci);
 #endif /* CONFIG_PCI */