linux-kernel - RE: [PATCH] phy: stm32: Fix printing of wrong uninitialized port number

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Date:   Thu, 5 Apr 2018 10:49:38 +0000
From:   Amelie DELAUNAY <amelie.delaunay@...com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        "Alexandre TORGUE" <alexandre.torgue@...com>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] phy: stm32: Fix printing of wrong uninitialized port
 number

Hi Geert,

Just to let you know, this warning is already fixed by a pending patch I've sent two weeks ago: https://lkml.org/lkml/2018/3/20/424.

Thanks,
Amelie

> -----Original Message-----
> From: Geert Uytterhoeven [mailto:geert@...ux-m68k.org]
> Sent: jeudi 5 avril 2018 11:47
> To: Kishon Vijay Abraham I <kishon@...com>; Maxime Coquelin
> <mcoquelin.stm32@...il.com>; Alexandre TORGUE
> <alexandre.torgue@...com>; Amelie DELAUNAY <amelie.delaunay@...com>
> Cc: linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> Geert Uytterhoeven <geert@...ux-m68k.org>
> Subject: [PATCH] phy: stm32: Fix printing of wrong uninitialized port number
> 
> drivers/phy/st/phy-stm32-usbphyc.c: In function ‘stm32_usbphyc_probe’:
> drivers/phy/st/phy-stm32-usbphyc.c:364: warning: ‘i’ may be used
> uninitialized in this function
> 
> Indeed, during the first loop iteration, "i" is uninitialized.
> However, "i" does not represent the intended PHY instance number to print.
> 
> Fix this by printing the correct variable instead.
> 
> Fixes: 94c358da3a054520 ("phy: stm32: add support for STM32 USB PHY
> Controller (USBPHYC)")
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> ---
>  drivers/phy/st/phy-stm32-usbphyc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/phy/st/phy-stm32-usbphyc.c b/drivers/phy/st/phy-
> stm32-usbphyc.c
> index bc4e78a19c913dc9..1f682c176fd6239e 100644
> --- a/drivers/phy/st/phy-stm32-usbphyc.c
> +++ b/drivers/phy/st/phy-stm32-usbphyc.c
> @@ -367,8 +367,8 @@ static int stm32_usbphyc_probe(struct
> platform_device *pdev)
>  		if (IS_ERR(phy)) {
>  			ret = PTR_ERR(phy);
>  			if (ret != -EPROBE_DEFER)
> -				dev_err(dev,
> -					"failed to create phy%d: %d\n", i, ret);
> +				dev_err(dev, "failed to create phy%d: %d\n",
> +					port, ret);
>  			goto put_child;
>  		}
> 
> --
> 2.7.4