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Re: [PATCH] vhost-user-scsi: Fix memleaks in vus_proc_req()
From: |
Raphael Norwitz |
Subject: |
Re: [PATCH] vhost-user-scsi: Fix memleaks in vus_proc_req() |
Date: |
Tue, 24 Nov 2020 10:37:55 -0500 |
On Tue, Nov 24, 2020 at 9:50 AM Alex Chen <alex.chen@huawei.com> wrote:
>
> The 'elem' is allocated memory in vu_queue_pop(), and it's memory should be
> freed in all error branchs after vu_queue_pop().
s/branchs/branches
> In addition, in order to free 'elem' memory outside of while(1) loop, move the
> definition of 'elem' to the begin of vus_proc_req().
s/begin/beginning
>
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Alex Chen <alex.chen@huawei.com>
Other than spelling in the commit message, looks good to me.
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
> ---
> contrib/vhost-user-scsi/vhost-user-scsi.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/contrib/vhost-user-scsi/vhost-user-scsi.c
> b/contrib/vhost-user-scsi/vhost-user-scsi.c
> index 0f9ba4b2a2..4639440a70 100644
> --- a/contrib/vhost-user-scsi/vhost-user-scsi.c
> +++ b/contrib/vhost-user-scsi/vhost-user-scsi.c
> @@ -232,6 +232,7 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
> VugDev *gdev;
> VusDev *vdev_scsi;
> VuVirtq *vq;
> + VuVirtqElement *elem = NULL;
>
> assert(vu_dev);
>
> @@ -248,7 +249,6 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
> g_debug("Got kicked on vq[%d]@%p", idx, vq);
>
> while (1) {
> - VuVirtqElement *elem;
> VirtIOSCSICmdReq *req;
> VirtIOSCSICmdResp *rsp;
>
> @@ -288,6 +288,7 @@ static void vus_proc_req(VuDev *vu_dev, int idx)
>
> free(elem);
> }
> + free(elem);
> }
>
> static void vus_queue_set_started(VuDev *vu_dev, int idx, bool started)
> --
> 2.19.1
>
>