irqchip/gic-v2m: Fix of_node refcount on error

On the error path, the v2m drivers drops the refcount on the parent
node instead of doing it on the node that generated the error.
Humph...

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2015-12-16 11:03:24 +00:00
commit 86d14c72b7