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Re: [Qemu-devel] [PATCH v2] 9pfs: fix memory leak in v9fs_write
From: |
Greg Kurz |
Subject: |
Re: [Qemu-devel] [PATCH v2] 9pfs: fix memory leak in v9fs_write |
Date: |
Wed, 12 Oct 2016 16:09:33 +0200 |
On Wed, 12 Oct 2016 06:10:56 -0700
Li Qiang <address@hidden> wrote:
> From: Li Qiang <address@hidden>
>
> If an error occurs when marshal the transfer length to the guest, the
> v9fs_write doesn't free an IO vector, thus leading a memory leak.
> This patch fix this.
>
> Signed-off-by: Li Qiang <address@hidden>
> ---
Good catch again!
Reviewed-by: Greg Kurz <address@hidden>
> hw/9pfs/9p.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
> index 8b50bfb..c8cf8c2 100644
> --- a/hw/9pfs/9p.c
> +++ b/hw/9pfs/9p.c
> @@ -2090,7 +2090,7 @@ static void v9fs_write(void *opaque)
> offset = 7;
> err = pdu_marshal(pdu, offset, "d", total);
> if (err < 0) {
> - goto out;
> + goto out_qiov;
> }
> err += offset;
> trace_v9fs_write_return(pdu->tag, pdu->id, total, err);