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Groups > linux.kernel > #1273603 > unrolled thread

[PATCH 1/1] usb: phy: omap-otg: do not write to unallocated memory

Started byHeinrich Schuchardt <xypron.glpk@gmx.de>
First post2015-11-20 00:50 +0100
Last post2015-11-20 07:10 +0100
Articles 2 — 2 participants

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  [PATCH 1/1] usb: phy: omap-otg: do not write to unallocated memory Heinrich Schuchardt <xypron.glpk@gmx.de> - 2015-11-20 00:50 +0100
    Re: [PATCH 1/1] usb: phy: omap-otg: do not write to unallocated memory Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-20 07:10 +0100

#1273603 — [PATCH 1/1] usb: phy: omap-otg: do not write to unallocated memory

FromHeinrich Schuchardt <xypron.glpk@gmx.de>
Date2015-11-20 00:50 +0100
Subject[PATCH 1/1] usb: phy: omap-otg: do not write to unallocated memory
Message-ID<qwH7I-7KF-15@gated-at.bofh.it>
The current coding writes to memory before allocating it.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
 drivers/usb/phy/phy-omap-otg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy-omap-otg.c b/drivers/usb/phy/phy-omap-otg.c
index 1270906..8bbf121 100644
--- a/drivers/usb/phy/phy-omap-otg.c
+++ b/drivers/usb/phy/phy-omap-otg.c
@@ -105,12 +105,13 @@ static int omap_otg_probe(struct platform_device *pdev)
 	extcon = extcon_get_extcon_dev(config->extcon);
 	if (!extcon)
 		return -EPROBE_DEFER;
-	otg_dev->extcon = extcon;
 
 	otg_dev = devm_kzalloc(&pdev->dev, sizeof(*otg_dev), GFP_KERNEL);
 	if (!otg_dev)
 		return -ENOMEM;
 
+	otg_dev->extcon = extcon;
+
 	otg_dev->base = devm_ioremap_resource(&pdev->dev, &pdev->resource[0]);
 	if (IS_ERR(otg_dev->base))
 		return PTR_ERR(otg_dev->base);
-- 
2.1.4

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#1273740

FromChanwoo Choi <cw00.choi@samsung.com>
Date2015-11-20 07:10 +0100
Message-ID<qwN3r-3oE-1@gated-at.bofh.it>
In reply to#1273603
Hi,

The same patch was already reviewed and applied on usb.git repository[1]
[1] https://git.kernel.org/cgit/linux/kernel/git/balbi/usb.git/commit/?h=testing/fixes&id=2c2025b41aeff57963f9ae2dd909fea704c625ab

Thanks,
Chanwoo Choi

On 2015년 11월 20일 08:43, Heinrich Schuchardt wrote:
> The current coding writes to memory before allocating it.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> ---
>  drivers/usb/phy/phy-omap-otg.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/phy/phy-omap-otg.c b/drivers/usb/phy/phy-omap-otg.c
> index 1270906..8bbf121 100644
> --- a/drivers/usb/phy/phy-omap-otg.c
> +++ b/drivers/usb/phy/phy-omap-otg.c
> @@ -105,12 +105,13 @@ static int omap_otg_probe(struct platform_device *pdev)
>  	extcon = extcon_get_extcon_dev(config->extcon);
>  	if (!extcon)
>  		return -EPROBE_DEFER;
> -	otg_dev->extcon = extcon;
>  
>  	otg_dev = devm_kzalloc(&pdev->dev, sizeof(*otg_dev), GFP_KERNEL);
>  	if (!otg_dev)
>  		return -ENOMEM;
>  
> +	otg_dev->extcon = extcon;
> +
>  	otg_dev->base = devm_ioremap_resource(&pdev->dev, &pdev->resource[0]);
>  	if (IS_ERR(otg_dev->base))
>  		return PTR_ERR(otg_dev->base);
> 

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