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>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index c11b313f015b..63cdf9887f36 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -339,12 +339,10 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags,
 
         memset(qe_ic, 0, sizeof(struct qe_ic));
 
-        qe_ic->irqhost = irq_alloc_host(of_node_get(node), IRQ_HOST_MAP_LINEAR,
+        qe_ic->irqhost = irq_alloc_host(node, IRQ_HOST_MAP_LINEAR,
                                         NR_QE_IC_INTS, &qe_ic_host_ops, 0);
-        if (qe_ic->irqhost == NULL) {
-                of_node_put(node);
+        if (qe_ic->irqhost == NULL)
                 return;
-        }
 
         qe_ic->regs = ioremap(res.start, res.end - res.start + 1);