linux-kernel - Re: [PATCH] Cleanups for: line length, printk KERN_ argument, stack frame size > 2048 (added a kmalloc/kfree), style/formatting errors, incorrect include files

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Date:	Fri, 9 Oct 2009 14:41:41 -0700
From:	Bruce B <bbeare1@...il.com>
To:	Greg KH <gregkh@...e.de>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Cleanups for: line length, printk KERN_ argument, stack frame size > 2048 (added a kmalloc/kfree), style/formatting errors, incorrect include files


On Oct 9, 2009, at 2:29 PM, Greg KH wrote:

> On Fri, Oct 09, 2009 at 02:27:42PM -0700, Randy Dunlap wrote:
>> On Fri, 9 Oct 2009 14:16:10 -0700 Greg KH wrote:
>>
>>>
>>> Try changing one thing at a time per patch please.
>>>
>>> There's some bugs in here:
>>>
>>>> -		struct config_t dig_in_config[32];
>>>> -		struct config_t dig_out_config[32];
>>>> -		struct config_t chan_in_config[32];
>>>> -		struct config_t chan_out_config[32];
>>>> 		int i;
>>>> +		config_data = kmalloc(sizeof(struct config_data_t), GFP_KERNEL);
>>>
>>> Shouldn't that be:
>>> 		config_data = kmalloc(sizeof(struct config_data_t)*32,  
>>> GFP_KERNEL);
>>
>> The new struct already includes the [32]s.
>
> Ah, missed that.
>
> But your other comment about checking the kmalloc is valid.  We should
> not add new calls to kmalloc that doesn't check, let's not _add_ new
> errors to the code :)
>
> Bruce, care to split this up into individual patches, each doing only
> one thing, and check for the return value of this call?
>
> thanks,
>
> greg k-h

Sure. Glad to.  A little head scratching will be required for the  
general cleanups in the .open routing for the kmalloc calls.
There are several different types of formatting errors that I have  
addressed. Those can be bundled as one patch?

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