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irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc

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[ Upstream commit 382d2ffe86 ]

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 <guanrui.huang@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240418061053.96803-3-guanrui.huang@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guanrui Huang 2024-04-18 14:10:53 +08:00 committed by Greg Kroah-Hartman
parent def4422ff0
commit 4ca547488d
1 changed files with 0 additions and 2 deletions
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2
drivers/irqchip/irq-gic-v3-its.c
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@ -4501,8 +4501,6 @@ 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;