Re: [RFC PATCH 33/35] Add the Xenbus sysfs and virtual device hotplug driver.

Alexey Dobriyan
2006-05-09T16:08:07Z

> +/* 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/