6.17-stable review patch. If anyone has any objections, please let me know.
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From: Nick Hu nick.hu@sifive.com
[ Upstream commit 14473a1f88596fd729e892782efc267c0097dd1d ]
The irq_domain_free_irqs() helper requires that the irq_domain_ops->free callback is implemented. Otherwise, the kernel reports the warning message "NULL pointer, cannot free irq" when irq_dispose_mapping() is invoked to release the per-HART local interrupts.
Set irq_domain_ops->free to irq_domain_free_irqs_top() to cure that.
Fixes: 832f15f42646 ("RISC-V: Treat IPIs as normal Linux IRQs") Signed-off-by: Nick Hu nick.hu@sifive.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Link: https://patch.msgid.link/20251114-rv-intc-fix-v1-1-a3edd1c1a868@sifive.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/irqchip/irq-riscv-intc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c index e5805885394ee..70290b35b3173 100644 --- a/drivers/irqchip/irq-riscv-intc.c +++ b/drivers/irqchip/irq-riscv-intc.c @@ -166,7 +166,8 @@ static int riscv_intc_domain_alloc(struct irq_domain *domain, static const struct irq_domain_ops riscv_intc_domain_ops = { .map = riscv_intc_domain_map, .xlate = irq_domain_xlate_onecell, - .alloc = riscv_intc_domain_alloc + .alloc = riscv_intc_domain_alloc, + .free = irq_domain_free_irqs_top, };
static struct fwnode_handle *riscv_intc_hwnode(void)