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Re: [PATCH] hw/clx: Fix CFMW config memory leak
From: |
Jonathan Cameron |
Subject: |
Re: [PATCH] hw/clx: Fix CFMW config memory leak |
Date: |
Tue, 30 May 2023 16:14:20 +0100 |
On Mon, 29 May 2023 15:59:56 +0800
Li Zhijian <lizhijian@cn.fujitsu.com> wrote:
> Only 'fw' pointer is marked as g_autofree, so we shoud free other
> resource manually in error path.
>
Good spot.
Patch title typo
hw/cxl:
It's a bit annoying we can't handle this with more autofree magic.
That would work for fw->targets but not for the string duplicates.
One other comment inline,
Thanks,
Jonathan
> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
> ---
> hw/cxl/cxl-host.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/hw/cxl/cxl-host.c b/hw/cxl/cxl-host.c
> index 034c7805b3e..dd1a7c83f71 100644
> --- a/hw/cxl/cxl-host.c
> +++ b/hw/cxl/cxl-host.c
> @@ -48,7 +48,7 @@ static void cxl_fixed_memory_window_config(CXLState
> *cxl_state,
> if (object->size % (256 * MiB)) {
> error_setg(errp,
> "Size of a CXL fixed memory window must be a multiple of
> 256MiB");
> - return;
> + goto err_free;
> }
> fw->size = object->size;
>
> @@ -57,7 +57,7 @@ static void cxl_fixed_memory_window_config(CXLState
> *cxl_state,
> cxl_interleave_granularity_enc(object->interleave_granularity,
> errp);
> if (*errp) {
> - return;
> + goto err_free;
> }
> } else {
> /* Default to 256 byte interleave */
> @@ -68,6 +68,12 @@ static void cxl_fixed_memory_window_config(CXLState
> *cxl_state,
> g_steal_pointer(&fw));
>
> return;
> +
> +err_free:
> + for (i = 0; i < fw->num_targets && fw->targets[i]; i++) {
No need to check fw->targets[i]
> + g_free(fw->targets[i]);
> + }
> + g_free(fw->targets);
> }
>
> void cxl_fmws_link_targets(CXLState *cxl_state, Error **errp)