[PATCHv4 01/14] arm: arch_timer: balance device_node refcounting

Mark Rutland mark.rutland at arm.com
Tue Jan 15 12:45:18 EST 2013

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 at arm.com>
Signed-off-by: Mark Rutland <mark.rutland at arm.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar at ti.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...

More information about the linux-arm-kernel mailing list