From: David Miller <davem@davemloft.net>
To: mmrmaximuzz@gmail.com
Cc: peppe.cavallaro@st.com, alexandre.torgue@st.com,
joabreu@synopsys.com, mcoquelin.stm32@gmail.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] stmmac: fix pointer check after utilization in stmmac_interrupt
Date: Mon, 04 May 2020 10:34:09 -0700 (PDT) [thread overview]
Message-ID: <20200504.103409.787413834519966204.davem@davemloft.net> (raw)
In-Reply-To: <20200504062639.GA11585@maxim-hplinux>
From: Maxim Petrov <mmrmaximuzz@gmail.com>
Date: Mon, 4 May 2020 09:26:43 +0300
> The paranoidal pointer check in IRQ handler looks very strange - it
> really protects us only against bogus drivers which request IRQ line
> with null pointer dev_id. However, the code fragment is incorrect
> because the dev pointer is used before the actual check which leads
> to undefined behavior. Remove the check to avoid confusing people
> with incorrect code.
>
> Signed-off-by: Maxim Petrov <mmrmaximuzz@gmail.com>
Applied, thanks.
next prev parent reply other threads:[~2020-05-04 17:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-04 6:26 [PATCH v2] stmmac: fix pointer check after utilization in stmmac_interrupt Maxim Petrov
2020-05-04 17:34 ` David Miller [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-05-04 15:42 Markus Elfring
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