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From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Yizhuo <yzhai003@ucr.edu>
Cc: csong@cs.ucr.edu, zhiyunq@cs.ucr.edu,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Chen-Yu Tsai <wens@csie.org>,
	netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net: stmmac: Variable "val" in function sun8i_dwmac_set_syscon() could be uninitialized
Date: Fri, 8 Feb 2019 08:44:58 +0100	[thread overview]
Message-ID: <20190208074458.edgvwfgytlio62yn@flea> (raw)
In-Reply-To: <20190207174623.16712-1-yzhai003@ucr.edu>

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On Thu, Feb 07, 2019 at 09:46:23AM -0800, Yizhuo wrote:
> In function sun8i_dwmac_set_syscon(), local variable "val" could
> be uninitialized if function regmap_read() returns -EINVAL.
> However, it will be used directly in the if statement, which
> is potentially unsafe.
> 
> Signed-off-by: Yizhuo <yzhai003@ucr.edu>

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>

Thanks!
Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Yizhuo <yzhai003@ucr.edu>
Cc: csong@cs.ucr.edu, Alexandre Torgue <alexandre.torgue@st.com>,
	netdev@vger.kernel.org, zhiyunq@cs.ucr.edu,
	linux-kernel@vger.kernel.org, Chen-Yu Tsai <wens@csie.org>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] net: stmmac: Variable "val" in function sun8i_dwmac_set_syscon() could be uninitialized
Date: Fri, 8 Feb 2019 08:44:58 +0100	[thread overview]
Message-ID: <20190208074458.edgvwfgytlio62yn@flea> (raw)
In-Reply-To: <20190207174623.16712-1-yzhai003@ucr.edu>


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On Thu, Feb 07, 2019 at 09:46:23AM -0800, Yizhuo wrote:
> In function sun8i_dwmac_set_syscon(), local variable "val" could
> be uninitialized if function regmap_read() returns -EINVAL.
> However, it will be used directly in the if statement, which
> is potentially unsafe.
> 
> Signed-off-by: Yizhuo <yzhai003@ucr.edu>

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>

Thanks!
Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2019-02-08  7:45 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-07 17:46 [PATCH] net: stmmac: Variable "val" in function sun8i_dwmac_set_syscon() could be uninitialized Yizhuo
2019-02-07 17:46 ` Yizhuo
2019-02-08  7:44 ` Maxime Ripard [this message]
2019-02-08  7:44   ` Maxime Ripard
2019-02-09  7:01 ` David Miller
2019-02-09  7:01   ` David Miller
2019-08-30 22:29   ` Yizhuo Zhai
2019-08-30 22:29     ` Yizhuo Zhai
2019-08-31  0:37     ` David Miller
2019-08-31  0:37       ` David Miller
  -- strict thread matches above, loose matches on Subject: below --
2019-02-05 22:15 Yizhuo
2019-02-05 22:15 ` Yizhuo
2019-02-06  9:18 ` Maxime Ripard
2019-02-06  9:18   ` Maxime Ripard
2019-02-07  4:17 ` David Miller
2019-02-07  4:17   ` David Miller
     [not found]   ` <CABvMjLQ6MYtGYeLxwceZsvcyn4oScgMo+BGQMHw7SkZ1uxFmHQ@mail.gmail.com>
2019-02-07  5:53     ` Yizhuo Zhai
2019-02-07  5:53       ` Yizhuo Zhai
2019-02-07  9:24       ` Maxime Ripard
2019-02-07  9:24         ` Maxime Ripard
2019-02-07 17:48         ` Yizhuo Zhai
2019-02-07 17:48           ` Yizhuo Zhai
2019-02-07 17:53     ` David Miller
2019-02-07 17:53       ` David Miller

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