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From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 01/11] arm: arch_timer: balance device_node refcounting
Date: Wed, 19 Dec 2012 15:11:00 +0000	[thread overview]
Message-ID: <1355929870-30252-2-git-send-email-mark.rutland@arm.com> (raw)
In-Reply-To: <1355929870-30252-1-git-send-email-mark.rutland@arm.com>

When we get the device_node for the arch timer, it's refcount is
automatically incremented in of_find_matching_node, but it is
never decremented.

This patch decrements the refcount on the node after we're finished
using it.

Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
---
 arch/arm/kernel/arch_timer.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
index c8ef207..6dd73c6 100644
--- a/arch/arm/kernel/arch_timer.c
+++ b/arch/arm/kernel/arch_timer.c
@@ -488,6 +488,8 @@ int __init arch_timer_of_register(void)
 	for (i = PHYS_SECURE_PPI; i < MAX_TIMER_PPI; i++)
 		arch_timer_ppi[i] = irq_of_parse_and_map(np, i);
 
+	of_node_put(np);
+
 	/*
 	 * If no interrupt provided for virtual timer, we'll have to
 	 * stick to the physical timer. It'd better be accessible...
-- 
1.7.0.4

  reply	other threads:[~2012-12-19 15:11 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-19 15:10 [PATCHv2 00/11] Unify arm_generic and arch_timer drivers Mark Rutland
2012-12-19 15:11 ` Mark Rutland [this message]
2012-12-19 15:11 ` [PATCHv2 02/11] arm: arch_timer: remove redundant available check Mark Rutland
2012-12-19 15:11 ` [PATCHv2 03/11] arm: arch_timer: use u64/u32 for register data Mark Rutland
2012-12-19 15:11 ` [PATCHv2 04/11] arm: arch_timer: standardise counter reading Mark Rutland
2012-12-19 15:11 ` [PATCHv2 05/11] arm: arch_timer: split cntfrq accessor Mark Rutland
2012-12-19 15:11 ` [PATCHv2 06/11] arm: arch_timer: factor out register accessors Mark Rutland
2012-12-19 15:11 ` [PATCHv2 07/11] arm: arch_timer: divorce from local_timer api Mark Rutland
2012-12-19 15:11 ` [PATCHv2 08/11] arm: arch_timer: add arch_counter_set_user_access Mark Rutland
2012-12-19 15:11 ` [PATCHv2 09/11] arm: arch_timer: move core to drivers/clocksource Mark Rutland
2012-12-19 15:11 ` [PATCHv2 10/11] arm64: move from arm_generic to arm_arch_timer Mark Rutland
2012-12-19 15:11 ` [PATCHv2 11/11] Documentation: Add ARMv8 to arch_timer devicetree Mark Rutland
  -- strict thread matches above, loose matches on Subject: below --
2013-01-09 16:07 [PATCHv3 00/11] Unify arm_generic and arch_timer drivers Mark Rutland
2013-01-09 16:07 ` [PATCHv2 01/11] arm: arch_timer: balance device_node refcounting Mark Rutland
2013-01-11 12:59   ` Santosh Shilimkar

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