irqchip: Plug a OF node reference leak in platform_irqchip_probe()

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platform_irqchip_probe() leaks a OF node when irq_init_cb() fails. Fix it
by declaring par_np with the __free(device_node) cleanup construct.

This bug was found by an experimental static analysis tool that I am
developing.

Fixes: f8410e6265 ("irqchip: Add IRQCHIP_PLATFORM_DRIVER_BEGIN/END and IRQCHIP_MATCH helper macros")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241215033945.3414223-1-joe@pf.is.s.u-tokyo.ac.jp

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Joe Hattori 2024-12-15 12:39:45 +09:00 • committed by Thomas Gleixner

parent 3a748d483d

commit 9322d1915f

1 changed files with 1 additions and 3 deletions

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drivers/irqchip/irqchip.c

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