linux-kernel - Re: [PATCH] Change paride driver to use unlocked

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Message-Id: <1199979101.4474.89.camel@nikanth-laptop.blr.novell.com>
Date:	Thu, 10 Jan 2008 21:01:41 +0530
From:	Nikanth Karthikesan <knikanth@...e.de>
To:	Jiri Kosina <jikos@...os.cz>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Matthew Wilcox <matthew@....cx>, grant@...que.net,
	tim@...erelk.net, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] Change paride driver to use unlocked_ioctl instead of
	ioctl

On Thu, 2008-01-10 at 16:01 +0100, Jiri Kosina wrote:
> On Wed, 9 Jan 2008, Alan Cox wrote:
> 
> > > > >  	default:
> > > > >  		printk("%s: Unimplemented ioctl 0x%x\n", tape->name, cmd);
> > > > > +		unlock_kernel();
> > > > >  		return -EINVAL;
> > > > Surely a bug ... shouldn't this return -ENOTTY?
> > Agreed - ENOTTY. 
> 
> Just out of curiosity, where does POSIX happen to specify ENOTTY as the 
> correct one for unimplemented ioctl?
> 

The printk is also wrong, It should have been, Invalid ioctl for the
device

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