From: Mika Westerberg <mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Jean Delvare <jdelvare-l3A5Bk7waGM@public.gmane.org>
Cc: Linux I2C <linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>,
"Rafael J. Wysocki"
<rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH] i2c: Not all adapters have a parent
Date: Thu, 10 Oct 2013 09:15:34 +0300 [thread overview]
Message-ID: <20131010061534.GC3521@intel.com> (raw)
In-Reply-To: <20131010080406.3e0fd78e-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
On Thu, Oct 10, 2013 at 08:04:06AM +0200, Jean Delvare wrote:
> The code in acpi_i2c_register_devices() assumes that all i2c adapters
> have a parent. This is not necessarily the case, for example the
> i2c-stub driver instantiate a virtual i2c adapter without a parent.
> Check for this to avoid a NULL pointer deference.
>
> Signed-off-by: Jean Delvare <jdelvare-l3A5Bk7waGM@public.gmane.org>
> Cc: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
> Cc: Mika Westerberg <mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> Cc: "Rafael J. Wysocki" <rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Oh, I didn't know that. Thanks for the information.
Acked-by: Mika Westerberg <mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Probably should go to stable as well.
next prev parent reply other threads:[~2013-10-10 6:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-10 6:04 [PATCH] i2c: Not all adapters have a parent Jean Delvare
[not found] ` <20131010080406.3e0fd78e-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2013-10-10 6:15 ` Mika Westerberg [this message]
2013-10-10 7:35 ` Wolfram Sang
2013-10-10 7:45 ` Jean Delvare
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