[0/3] of: irq: Fixes refcount issues with of_irq_parse_one()/of_irq_parse_raw()

Message

Jean-Jacques Hiblot March 1, 2023, 6:52 p.m. UTC

This series attempts to fix refcounting issues related to of_irq_parse_one()
and of_irq_parse_raw().

The first issue is simply that most callers of of_irq_parse_one() and
of_irq_parse_raw() don't call of_node_put() on the returned device node when
they no longer need it.

The second issue is a double get() happening in of_irq_parse_one() when
parsing the "interrupts-extended" properties.

WARNING: I tried to be careful when modifying the callers of
of_irq_parse_one()/of_irq_parse_raw() but haven't test-build all the changes.


Jean-Jacques Hiblot (3):
  of: irq: make callers of of_irq_parse_raw() release the device node
  of: irq: make callers of of_irq_parse_one() release the device node
  of: irq: release the node after looking up for "interrupts-extended"

 .../mach-shmobile/regulator-quirk-rcar-gen2.c |  1 +
 arch/powerpc/platforms/fsl_uli1575.c          |  1 +
 arch/powerpc/sysdev/mpic_msi.c                |  1 +
 drivers/bcma/main.c                           |  5 +++-
 drivers/clocksource/timer-clint.c             |  1 +
 drivers/irqchip/irq-mchp-eic.c                |  1 +
 drivers/irqchip/irq-owl-sirq.c                |  1 +
 drivers/irqchip/irq-renesas-rzg2l.c           |  1 +
 drivers/irqchip/irq-sifive-plic.c             |  1 +
 drivers/irqchip/irq-sun6i-r.c                 |  2 ++
 drivers/of/irq.c                              | 30 ++++++++++++++-----
 drivers/of/unittest.c                         |  7 +++++
 drivers/pci/of.c                              |  6 +++-
 drivers/soc/ti/knav_qmss_queue.c              |  3 ++
 drivers/usb/host/xhci-tegra.c                 |  1 +
 15 files changed, 53 insertions(+), 9 deletions(-)