This is a note to let you know that I've just added the patch titled
irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
irqchip-atmel-aic-fix-unbalanced-refcount-in-aic_common_rtc_irq_fixup.patch
and it can be found in the queue-4.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 277867ade8262583f4280cadbe90e0031a3706a7 Mon Sep 17 00:00:00 2001
From: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Date: Tue, 4 Jul 2017 11:10:40 +0200
Subject: irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
From: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
commit 277867ade8262583f4280cadbe90e0031a3706a7 upstream.
of_find_compatible_node() is calling of_node_put() on its first argument
thus leading to an unbalanced of_node_get/put() issue if the node has not
been retained before that.
Instead of passing the root node, pass NULL, which does exactly the same:
iterate over all DT nodes, starting from the root node.
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Reported-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Fixes: 3d61467f9bab ("irqchip: atmel-aic: Implement RTC irq fixup")
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/irqchip/irq-atmel-aic-common.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -142,9 +142,9 @@ void __init aic_common_rtc_irq_fixup(str
struct device_node *np;
void __iomem *regs;
- np = of_find_compatible_node(root, NULL, "atmel,at91rm9200-rtc");
+ np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-rtc");
if (!np)
- np = of_find_compatible_node(root, NULL,
+ np = of_find_compatible_node(NULL, NULL,
"atmel,at91sam9x5-rtc");
if (!np)
Patches currently in stable-queue which might be from boris.brezillon@xxxxxxxxxxxxxxxxxx are
queue-4.12/irqchip-atmel-aic-fix-unbalanced-of_node_put-in-aic_common_irq_fixup.patch
queue-4.12/irqchip-atmel-aic-fix-unbalanced-refcount-in-aic_common_rtc_irq_fixup.patch