From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org,
Billy Tsai <billy_tsai@aspeedtech.com>
Cc: BMC-SW@aspeedtech.com
Subject: Re: [PATCH v1] i3c/master/mipi-i3c-hci: Fix a kernel panic for accessing DAT_data.
Date: Sat, 4 Nov 2023 00:41:47 +0100 [thread overview]
Message-ID: <169905489155.439104.1007504050351939428.b4-ty@bootlin.com> (raw)
In-Reply-To: <20231023080237.560936-1-billy_tsai@aspeedtech.com>
On Mon, 23 Oct 2023 16:02:37 +0800, Billy Tsai wrote:
> The `i3c_master_bus_init` function may attach the I2C devices before the
> I3C bus initialization. In this flow, the DAT `alloc_entry`` will be used
> before the DAT `init`. Additionally, if the `i3c_master_bus_init` fails,
> the DAT `cleanup` will execute before the device is detached, which will
> execue DAT `free_entry` function. The above scenario can cause the driver
> to use DAT_data when it is NULL.
>
> [...]
Applied, thanks!
[1/1] i3c/master/mipi-i3c-hci: Fix a kernel panic for accessing DAT_data.
commit: b53e9758a31c683fc8615df930262192ed5f034b
Best regards,
--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
--
linux-i3c mailing list
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http://lists.infradead.org/mailman/listinfo/linux-i3c
prev parent reply other threads:[~2023-11-03 23:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-23 8:02 [PATCH v1] i3c/master/mipi-i3c-hci: Fix a kernel panic for accessing DAT_data Billy Tsai
2023-11-03 23:41 ` Alexandre Belloni [this message]
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