gpio: ljca: Fix duplicated IRQ mapping

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[ Upstream commit 4c4e6ea4a1 ]

The generic_handle_domain_irq() function resolves the hardware IRQ
internally. The driver performed a duplicative mapping by calling
irq_find_mapping() first, which could lead to an RCU stall.

Delete the redundant irq_find_mapping() call and pass the hardware IRQ
directly to generic_handle_domain_irq().

Fixes: c5a4b6fd31 ("gpio: Add support for Intel LJCA USB GPIO driver")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20251023070231.1305-1-vulab@iscas.ac.cn
[Bartosz: remove unused variable]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Haotian Zhang 2025-10-23 15:02:30 +08:00 • committed by Greg Kroah-Hartman

parent e7200d6afa

commit 50c6086e0d

1 changed files with 3 additions and 11 deletions

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drivers/gpio/gpio-ljca.c

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