[PATCH AUTOSEL 4.9 37/62] MIPS: generic: fix missing of_node_put()

[Sasha Levin]

From: Nicholas Mc Guire <hofrat@xxxxxxxxx>

[ Upstream commit 28ec2238f37e72a3a40a7eb46893e7651bcc40a6 ]

of_find_compatible_node() returns a device_node pointer with refcount
incremented and must be decremented explicitly.
 As this code is using the result only to check presence of the interrupt
controller (!NULL) but not actually using the result otherwise the
refcount can be decremented here immediately again.

Signed-off-by: Nicholas Mc Guire <hofrat@xxxxxxxxx>
Signed-off-by: Paul Burton <paul.burton@xxxxxxxx>
Patchwork: https://patchwork.linux-mips.org/patch/19820/
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: James Hogan <jhogan@xxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 arch/mips/generic/init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c
index d493ccbf274a..cf5b56492d8e 100644
--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -159,6 +159,7 @@ void __init arch_init_irq(void)
 					    "mti,cpu-interrupt-controller");
 	if (!cpu_has_veic && !intc_node)
 		mips_cpu_irq_init();
+	of_node_put(intc_node);
 
 	irqchip_init();
 }
-- 
2.17.1