linux-kernel - Re: [linux-usb-devel] USB-related oops in sysfs with linux v2.6.23-rc3-50-g28e8351

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Date:	Wed, 15 Aug 2007 11:33:22 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Tejun Heo <htejun@...il.com>
cc:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Florin Iucha <florin@...ha.net>, Greg KH <gregkh@...e.de>,
	USB development list <linux-usb-devel@...ts.sourceforge.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [linux-usb-devel] USB-related oops in sysfs with linux
 v2.6.23-rc3-50-g28e8351

On Wed, 15 Aug 2007, Tejun Heo wrote:

> Alan Stern wrote:
> > I think we can simply remove the error message.  There's no obvious 
> > reason why sysfs_remove_bin_file() should complain about attempts to 
> > remove a nonexistent file; sysfs_remove_file() doesn't.
> > 
> > This patch will get rid of the annoying error messages.  It won't do 
> > anything about your keyboard's tendency to spontaneously stop working, 
> > alas.
> 
> Agreed but I think sysfs_remove_bin_file() should relay the return value
> from sysfs_has_and_remove() to the caller.

Perhaps.  But none of

	sysfs_remove_one()
	sysfs_remove_subdir()
	sysfs_remove_dir()
	sysfs_remove_file()
	sysfs_remove_file_from_group()
	sysfs_remove_group()
	sysfs_remove_link()

return a value.  Why should sysfs_remove_bin_file() be different?  And 
what callers would pay attention to the return value?

Alan Stern

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