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Date: Tue, 9 May 2006 20:06:35 +0400
From: Alexey Dobriyan <adobriyan@gmail.com>
To: Chris Wright <chrisw@sous-sol.org>
Cc: linux-kernel@vger.kernel.org, virtualization@lists.osdl.org,
       xen-devel@lists.xensource.com, Ian Pratt <ian.pratt@xensource.com>,
       Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Subject: Re: [RFC PATCH 33/35] Add the Xenbus sysfs and virtual device hotplug driver.
Message-ID: <20060509160635.GB7237@mipter.zuzino.mipt.ru>
References: <20060509084945.373541000@sous-sol.org> <20060509085200.826853000@sous-sol.org>
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> +/* Simplified asprintf. */
> +char *kasprintf(const char *fmt, ...)
> +{
> +	va_list ap;
> +	unsigned int len;
> +	char *p, dummy[1];
> +
> +	va_start(ap, fmt);
> +	/* FIXME: vsnprintf has a bug, NULL should work */
> +	len = vsnprintf(dummy, 0, fmt, ap);
> +	va_end(ap);
> +
> +	p = kmalloc(len + 1, GFP_KERNEL);
> +	if (!p)
> +		return NULL;
> +	va_start(ap, fmt);
> +	vsprintf(p, fmt, ap);
> +	va_end(ap);
> +	return p;
> +}

This should go to lib/

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