Old-Ding 3eac0a8a17 drivers: pic: Fix PIRQ lookup upper bound ...

rt_pic_linear_irq() stores irq_nr as a count and assigns pic->pirqs to the first entry in that range. rt_pic_find_pirq() therefore must treat the upper bound as exclusive.

The inclusive check could return pic->pirqs[irq_nr] when irq equals irq_start + irq_nr, which is one entry past the allocated range.

Generated-by: OpenAI Codex
Signed-off-by: Old-Ding <35417409+Old-Ding@users.noreply.github.com>

2026-07-08 14:03:16 +08:00

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drivers

drivers: pic: Fix PIRQ lookup upper bound

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