From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Date: Sun, 09 Jun 2013 15:22:59 +0000
Subject: Re: [PATCH v3 06/27] ia64, irq: Add dummy create_irq_nr()
Message-Id: <20130609152259.GC2245@breakpoint.cc>
List-Id: <linux-ia64.vger.kernel.org>
References: <1370644273-10495-1-git-send-email-yinghai@kernel.org>
 <1370644273-10495-7-git-send-email-yinghai@kernel.org>
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To: Yinghai Lu <yinghai@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>, Bjorn Helgaas <bhelgaas@google.com>, "Rafael J. Wysocki" <rjw@sisk.pl>, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, linux-ia64@vger.kernel.org

On Fri, Jun 07, 2013 at 03:30:52PM -0700, Yinghai Lu wrote:
> create_irq() will return -1 when fail to allocate.
The ia64 code here will return -ENOSPC. 

> create_irq_nr() will return 0 when fail to allocate.
> 
> Will use it to fix one return value checking for dmar_msi irq.

What about to unify the interface? Using -1 is kinda bad.

Sebastian