linux-kernel - Re: [PATCH] scsi: ses check name in enclosure_component

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Message-ID: <49F7979A.8040302@kernel.org>
Date:	Tue, 28 Apr 2009 16:56:10 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Kay Sievers <kay.sievers@...y.org>, Greg KH <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Scsi <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH] scsi: ses check name in enclosure_component_register

James Bottomley wrote:
> On Mon, 2009-04-27 at 19:18 -0700, Yinghai Lu wrote:
>> dev_set_name will use sprintf to copy the name.
>> need to check if the name does valid.
>>
>> otherwise will error from device_add later.
> 
> I think what you mean to say is that empty names aren't allowed in the
> device model.
> 
>> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
>>
>> diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
>> index 3cf61ec..68743a9 100644
>> --- a/drivers/misc/enclosure.c
>> +++ b/drivers/misc/enclosure.c
>> @@ -255,7 +255,7 @@ enclosure_component_register(struct enclosure_device *edev,
>>  	ecomp->number = number;
>>  	cdev = &ecomp->cdev;
>>  	cdev->parent = get_device(&edev->edev);
>> -	if (name)
>> +	if (name && name[0])
>>  		dev_set_name(cdev, name);
> 
> Actually, I think this should become
> 
> dev_set_name(cdev, "%s", name);
> 
> as well, otherwise any name with a percent in it will get interpreted in
> ways we're not expecting at all.

i tried that it still failed.

YH
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