From: Thomas Gleixner <tglx@linutronix.de>
To: Haotian Zhang <vulab@iscas.ac.cn>
Cc: linux-kernel@vger.kernel.org, Haotian Zhang <vulab@iscas.ac.cn>
Subject: Re: [PATCH] irqchip/ingenic-tcu: free generic chips on error path
Date: Wed, 19 Aug 2026 21:34:04 +0200 [thread overview]
Message-ID: <87fr09kiqb.ffs@fw13> (raw)
In-Reply-To: <20260818030206.4420-1-vulab@iscas.ac.cn>
On Tue, Aug 18 2026 at 11:02, Haotian Zhang wrote:
> irq_alloc_domain_generic_chips() stores the allocated generic chip
> data in domain->gc. On the error path taken when irq_of_parse_and_map()
> fails, ingenic_tcu_irq_init() calls irq_domain_remove() without first
> calling irq_domain_remove_generic_chips(). As the domain was created
> with irq_domain_add_linear(), which does not set
> IRQ_DOMAIN_FLAG_DESTROY_GC, irq_domain_remove() never frees the generic
> chips and the allocation leaks.
>
> Call irq_domain_remove_generic_chips() before irq_domain_remove() so
> that the generic chip data is released on the error path.
No. Set the stupid flag on the domain and let the core code do it.
prev parent reply other threads:[~2026-08-19 19:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-18 3:02 [PATCH] irqchip/ingenic-tcu: free generic chips on error path Haotian Zhang
2026-08-19 19:34 ` Thomas Gleixner [this message]
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