This is a note to let you know that I've just added the patch titled irqchip/loongson-pch-pic: Fix translate callback for DT path to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: irqchip-loongson-pch-pic-fix-translate-callback-for-.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 8a9380566d80218f407b400437f394fcbf92e47d Author: Jianmin Lv <lvjianmin@xxxxxxxxxxx> Date: Sat Oct 22 15:59:53 2022 +0800 irqchip/loongson-pch-pic: Fix translate callback for DT path [ Upstream commit c7c00138015975c8f0e268564249cc47d8de632c ] In DT path of translate callback, if fwspec->param_count==1 and of_node is non-null, fwspec->param[1] will be accessed, which is introduced from previous commit bcdd75c596c8 (irqchip/loongson-pch-pic: Add ACPI init support). Before the patch, for non-null of_node, translate callback (use irq_domain_translate_twocell()) will return -EINVAL if fwspec->param_count < 2, so the check in the patch is added. Fixes: bcdd75c596c8 ("irqchip/loongson-pch-pic: Add ACPI init support") Signed-off-by: Jianmin Lv <lvjianmin@xxxxxxxxxxx> Reviewed-by: Huacai Chen <chenhuacai@xxxxxxxxxxx> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Link: https://lore.kernel.org/r/20221022075955.11726-3-lvjianmin@xxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c index c01b9c257005..03493cda65a3 100644 --- a/drivers/irqchip/irq-loongson-pch-pic.c +++ b/drivers/irqchip/irq-loongson-pch-pic.c @@ -159,6 +159,9 @@ static int pch_pic_domain_translate(struct irq_domain *d, return -EINVAL; if (of_node) { + if (fwspec->param_count < 2) + return -EINVAL; + *hwirq = fwspec->param[0] + priv->ht_vec_base; *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK; } else {