From: Guanrui Huang Date: Thu, 18 Apr 2024 06:10:53 +0000 (+0800) Subject: irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=382d2ffe86efb1e2fa803d2cf17e5bfc34e574f3;p=users%2Fhch%2Fblock.git irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc This BUG_ON() is useless, because the same effect will be obtained by letting the code run its course and vm being dereferenced, triggering an exception. So just remove this check. Signed-off-by: Guanrui Huang Signed-off-by: Thomas Gleixner Reviewed-by: Zenghui Yu Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20240418061053.96803-3-guanrui.huang@linux.alibaba.com --- diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 20f954211c61..98e559304b7f 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -4526,8 +4526,6 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq struct page *vprop_page; int base, nr_ids, i, err = 0; - BUG_ON(!vm); - bitmap = its_lpi_alloc(roundup_pow_of_two(nr_irqs), &base, &nr_ids); if (!bitmap) return -ENOMEM;