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Groups > linux.kernel > #1717780

[PATCH 3.18 06/10] irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()

From Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups linux.kernel
Subject [PATCH 3.18 06/10] irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
Date 2017-08-22 21:40 +0200
Message-ID <uhnbQ-6Qf-43@gated-at.bofh.it> (permalink)
References <uhmIN-6Dr-13@gated-at.bofh.it>
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3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Boris Brezillon <boris.brezillon@free-electrons.com>

commit 469bcef53c546bb792aa66303933272991b7831d upstream.

aic_common_irq_fixup() is calling twice of_node_put() on the same node
thus leading to an unbalanced refcount on the root node.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Fixes: b2f579b58e93 ("irqchip: atmel-aic: Add irq fixup infrastructure")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/irqchip/irq-atmel-aic-common.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -176,7 +176,6 @@ void __init aic_common_irq_fixup(const s
 		return;
 
 	match = of_match_node(matches, root);
-	of_node_put(root);
 
 	if (match) {
 		void (*fixup)(struct device_node *) = match->data;

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Thread

[PATCH 3.18 00/10] 3.18.67-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:10 +0200
  [PATCH 3.18 05/10] mm/mempolicy: fix use after free when calling get_mempolicy Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:20 +0200
  [PATCH 3.18 02/10] audit: Fix use after free in audit_remove_watch_rule() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 01/10] netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 09/10] pids: make task_tgid_nr_ns() safe Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 06/10] irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 07/10] irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 04/10] ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 08/10] Sanitize move_pages() permission checks Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  [PATCH 3.18 10/10] usb: qmi_wwan: add D-Link DWM-222 device ID Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-08-22 21:40 +0200
  Re: [PATCH 3.18 00/10] 3.18.67-stable review Shuah Khan <shuahkh@osg.samsung.com> - 2017-08-23 02:40 +0200

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