Greentime Hu f9ac7bbd6e irqchip/sifive-plic: Fix chip_data access within a hierarchy ...

The plic driver crashes in plic_irq_unmask() when the interrupt is within a
hierarchy, as it picks the top-level chip_data instead of its local one.

Using irq_data_get_irq_chip_data() instead of irq_get_chip_data() solves
the issue for good.

Fixes: f1ad1133b1 ("irqchip/sifive-plic: Add support for multiple PLICs")
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
[maz: rewrote commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Link: https://lore.kernel.org/r/20201029023738.127472-1-greentime.hu@sifive.com

2020-11-01 11:52:27 +00:00

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