linux-kernel - Re: [PATCH] net: marvell: fix a missing check of acpi_match

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Message-Id: <20181227.162712.705546628469200285.davem@davemloft.net>
Date:   Thu, 27 Dec 2018 16:27:12 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     kjlu@....edu
Cc:     pakki001@....edu, antoine.tenart@...tlin.com,
        maxime.chevallier@...tlin.com, ymarkman@...vell.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: marvell: fix a missing check of acpi_match_device

From: Kangjie Lu <kjlu@....edu>
Date: Wed, 26 Dec 2018 00:31:08 -0600

> When acpi_match_device fails, its return value is NULL. Directly using
> the return value without a check may result in a NULL-pointer
> dereference. The fix checks if acpi_match_device fails, and if so,
> returns -EINVAL.
> 
> Signed-off-by: Kangjie Lu <kjlu@....edu>

Applied.