powerpc: Fix irq_alloc_host() reference counting and callers

When I changed irq_alloc_host() to take an of_node
(52964f87c64e6c6ea671b5bf3030fb1494090a48: "Add an optional
device_node pointer to the irq_host"), I botched the reference
counting semantics.

Stephen pointed out that it's irq_alloc_host()'s business if
it needs to take an additional reference to the device_node,
the caller shouldn't need to care.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index b43defb9918c..896548ba1ca1 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -365,7 +365,7 @@ static int axon_msi_probe(struct of_device *device,
                 goto out_free_fifo;
         }
 
-        msic->irq_host = irq_alloc_host(of_node_get(dn), IRQ_HOST_MAP_NOMAP,
+        msic->irq_host = irq_alloc_host(dn, IRQ_HOST_MAP_NOMAP,
                                         NR_IRQS, &msic_host_ops, 0);
         if (!msic->irq_host) {
                 printk(KERN_ERR "axon_msi: couldn't allocate irq_host for %s\n",
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 3f4b4aef756d..4e5655624ae8 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -300,7 +300,7 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
                 panic("spider_pic: can't map registers !");
 
         /* Allocate a host */
-        pic->host = irq_alloc_host(of_node_get(of_node), IRQ_HOST_MAP_LINEAR,
+        pic->host = irq_alloc_host(of_node, IRQ_HOST_MAP_LINEAR,
                                    SPIDER_SRC_COUNT, &spider_host_ops,
                                    SPIDER_IRQ_INVALID);
         if (pic->host == NULL)