On Fri, Feb 19, 2010 at 06:09:13PM +0100, Jim Meyering wrote:
> No one really cares if we leak memory while dying, but who knows...
especially in virsh ...
> freeing that buffer may let us go down more gracefully.
>
> FYI, the leak is triggered when virFileReadAll succeeds
> (it allocates "buffer"), yet xmlNewDoc fails:
>
> if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0)
> return FALSE;
>
> doc = xmlNewDoc(NULL);
> if (doc == NULL)
> goto no_memory;
>
>
> >From 03c7a44e3d5b2e7c992bebc98fc8c6a7bf63881e Mon Sep 17 00:00:00 2001
> From: Jim Meyering <meyering@xxxxxxxxxx>
> Date: Fri, 19 Feb 2010 18:03:41 +0100
> Subject: [PATCH] virsh.c: avoid leak on OOM error path
>
> * tools/virsh.c (cmdCPUBaseline): Also free "buffer" upon OOM.
> ---
> tools/virsh.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/tools/virsh.c b/tools/virsh.c
> index dd916f3..8756a7a 100644
> --- a/tools/virsh.c
> +++ b/tools/virsh.c
> @@ -7139,6 +7139,7 @@ cleanup:
> return ret;
>
> no_memory:
> + VIR_FREE(buffer);
> vshError(ctl, "%s", _("Out of memory"));
> ret = FALSE;
> return ret;
ACK
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel@xxxxxxxxxxxx | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
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