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

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Message-ID: <Pine.LNX.4.64.0801101601000.25041@twin.jikos.cz>
Date:	Thu, 10 Jan 2008 16:01:44 +0100 (CET)
From:	Jiri Kosina <jikos@...os.cz>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
cc:	Matthew Wilcox <matthew@....cx>,
	Nikanth Karthikesan <knikanth@...e.de>, 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 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?

-- 
Jiri Kosina
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