From: Madhavan Srinivasan <maddy@linux.ibm.com>
To: agust@denx.de, mpe@ellerman.id.au, npiggin@gmail.com,
chleroy@kernel.org, tglx@kernel.org, brgl@kernel.org,
jirislaby@kernel.org, Chen Ni <nichen@iscas.ac.cn>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] powerpc/52xx/mpc52xx_gpt: consolidate chained IRQ handler install/remove
Date: Wed, 8 Apr 2026 09:58:50 +0530 [thread overview]
Message-ID: <177562236424.1381144.11818543807303664458.b4-ty@linux.ibm.com> (raw)
In-Reply-To: <20260119061232.889236-1-nichen@iscas.ac.cn>
On Mon, 19 Jan 2026 14:12:32 +0800, Chen Ni wrote:
> The driver currently sets the handler data and the chained handler in
> two separate steps. This creates a theoretical race window where an
> interrupt could fire after the handler is set but before the data is
> assigned, leading to a NULL pointer dereference.
>
> Replace the two calls with irq_set_chained_handler_and_data() to set
> both the handler and its data atomically under the irq_desc->lock.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/52xx/mpc52xx_gpt: consolidate chained IRQ handler install/remove
https://git.kernel.org/powerpc/c/7593721cd7c1315557956d5241bbb65fb33115eb
cheers
prev parent reply other threads:[~2026-04-08 4:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-19 6:12 [PATCH] powerpc/52xx/mpc52xx_gpt: consolidate chained IRQ handler install/remove Chen Ni
2026-01-19 9:41 ` Bartosz Golaszewski
2026-04-08 4:28 ` Madhavan Srinivasan [this message]
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