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From: Roger Quadros <rogerq@ti.com>
To: thomas.langer@lantiq.com
Cc: balbi@ti.com, bcousson@baylibre.com, tony@atomide.com,
	george.cherian@ti.com, kishon@ti.com, bigeasy@linutronix.de,
	sergei.shtylyov@cogentembedded.com, linux-usb@vger.kernel.org,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v5 1/8] usb: phy: omap-control: Get rid of platform data
Date: Wed, 21 Aug 2013 09:46:29 +0300	[thread overview]
Message-ID: <52146245.6020904@ti.com> (raw)
In-Reply-To: <593AEF6C47F46446852B067021A273D6D982D30B@MUCSE039.lantiq.com>

Hi Thomas,

On 08/20/2013 06:04 PM, thomas.langer@lantiq.com wrote:
> Hello Roger,
> 
> this will not work!
> 
> Roger Quadros wrote on 2013-08-20:
> 
>> -	struct omap_control_usb_platform_data *pdata =
>> -			dev_get_platdata(&pdev->dev);
>> +
>> +	if (np) {
>> +		of_property_read_u32(np, "ti,type", &control_usb->type);
> 
> here you are dereferencing control_usb
> 
>> +	} else {
>> +		/* We only support DT boot */
>> +		return -EINVAL;
>> +	}
>>
>>  	control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb),
>>  		GFP_KERNEL);
> 
> and here it is allocated!

Good catch :).
The problem is eliminated by other patches in this series, so tests ran fine.
But I'll fix this one.

cheers,
-roger

WARNING: multiple messages have this Message-ID (diff)
From: rogerq@ti.com (Roger Quadros)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 1/8] usb: phy: omap-control: Get rid of platform data
Date: Wed, 21 Aug 2013 09:46:29 +0300	[thread overview]
Message-ID: <52146245.6020904@ti.com> (raw)
In-Reply-To: <593AEF6C47F46446852B067021A273D6D982D30B@MUCSE039.lantiq.com>

Hi Thomas,

On 08/20/2013 06:04 PM, thomas.langer at lantiq.com wrote:
> Hello Roger,
> 
> this will not work!
> 
> Roger Quadros wrote on 2013-08-20:
> 
>> -	struct omap_control_usb_platform_data *pdata =
>> -			dev_get_platdata(&pdev->dev);
>> +
>> +	if (np) {
>> +		of_property_read_u32(np, "ti,type", &control_usb->type);
> 
> here you are dereferencing control_usb
> 
>> +	} else {
>> +		/* We only support DT boot */
>> +		return -EINVAL;
>> +	}
>>
>>  	control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb),
>>  		GFP_KERNEL);
> 
> and here it is allocated!

Good catch :).
The problem is eliminated by other patches in this series, so tests ran fine.
But I'll fix this one.

cheers,
-roger

  reply	other threads:[~2013-08-21  6:47 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-20 14:56 [PATCH v5 0/8] phy: omap-usb: Support multiple instances and new types Roger Quadros
2013-08-20 14:56 ` Roger Quadros
2013-08-20 14:56 ` [PATCH v5 1/8] usb: phy: omap-control: Get rid of platform data Roger Quadros
2013-08-20 14:56   ` Roger Quadros
2013-08-20 15:04   ` thomas.langer
2013-08-20 15:04     ` thomas.langer at lantiq.com
2013-08-21  6:46     ` Roger Quadros [this message]
2013-08-21  6:46       ` Roger Quadros
2013-08-20 14:56 ` [PATCH v5 4/8] usb: phy: omap-usb3: Don't use omap_get_control_dev() Roger Quadros
2013-08-20 14:56   ` Roger Quadros
     [not found] ` <1377010577-19355-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2013-08-20 14:56   ` [PATCH v5 2/8] usb: phy: omap: Add new device types and remove omap_control_usb3_phy_power() Roger Quadros
2013-08-20 14:56     ` Roger Quadros
2013-08-20 14:56   ` [PATCH v5 3/8] usb: phy: omap-usb2: Don't use omap_get_control_dev() Roger Quadros
2013-08-20 14:56     ` Roger Quadros
2013-08-20 14:56   ` [PATCH v5 5/8] usb: musb: omap2430: " Roger Quadros
2013-08-20 14:56     ` Roger Quadros
     [not found]     ` <1377010577-19355-6-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2013-08-20 17:57       ` Sergei Shtylyov
2013-08-20 17:57         ` Sergei Shtylyov
     [not found]         ` <5213AE04.1070907-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2013-08-21  6:41           ` Roger Quadros
2013-08-21  6:41             ` Roger Quadros
2013-08-20 14:56   ` [PATCH v5 6/8] usb: phy: omap: get rid of omap_get_control_dev() Roger Quadros
2013-08-20 14:56     ` Roger Quadros
2013-08-20 14:56   ` [PATCH v5 7/8] ARM: dts: omap4: update omap-control-usb nodes Roger Quadros
2013-08-20 14:56     ` Roger Quadros
2013-08-20 14:56 ` [PATCH v5 8/8] ARM: dts: omap5: update omap-control-usb node Roger Quadros
2013-08-20 14:56   ` Roger Quadros

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