[libvirt] [PATCH] ESX: Fix memory leak in list handling functions.
Daniel P. Berrange
berrange at redhat.com
Wed Oct 28 22:45:54 UTC 2009
On Wed, Oct 28, 2009 at 09:12:57PM +0100, Matthias Bolte wrote:
> If an error occurs between the allocation of an item and appending it
> to the list, the item leaks. Free such orphaned items in error cases.
>
> * src/esx/esx_vi.c: free orphaned items in error cases
> ---
> src/esx/esx_vi.c | 24 ++++++++----------------
> 1 files changed, 8 insertions(+), 16 deletions(-)
>
> diff --git a/src/esx/esx_vi.c b/src/esx/esx_vi.c
> index bcf110f..04860e2 100644
> --- a/src/esx/esx_vi.c
> +++ b/src/esx/esx_vi.c
> @@ -959,28 +959,22 @@ esxVI_List_CastFromAnyType(virConnectPtr conn, esxVI_AnyType *anyType,
>
> esxVI_AnyType_Free(&childAnyType);
>
> - if (esxVI_AnyType_Deserialize(conn, childNode, &childAnyType) < 0) {
> + if (esxVI_AnyType_Deserialize(conn, childNode, &childAnyType) < 0 ||
> + castFromAnyTypeFunc(conn, childAnyType, &item) < 0 ||
> + esxVI_List_Append(conn, list, item) < 0) {
> goto failure;
> }
>
> item = NULL;
> -
> - if (castFromAnyTypeFunc(conn, childAnyType, &item) < 0) {
> - goto failure;
> - }
> -
> - if (esxVI_List_Append(conn, list, item) < 0) {
> - goto failure;
> - }
> }
>
> -
> cleanup:
> esxVI_AnyType_Free(&childAnyType);
>
> return result;
>
> failure:
> + freeFunc(&item);
> freeFunc(list);
>
> result = -1;
> @@ -1039,20 +1033,18 @@ esxVI_List_Deserialize(virConnectPtr conn, xmlNodePtr node, esxVI_List **list,
> goto failure;
> }
>
> - item = NULL;
> -
> - if (deserializeFunc(conn, node, &item) < 0) {
> + if (deserializeFunc(conn, node, &item) < 0 ||
> + esxVI_List_Append(conn, list, item) < 0) {
> goto failure;
> }
>
> - if (esxVI_List_Append(conn, list, item) < 0) {
> - goto failure;
> - }
> + item = NULL;
> }
>
> return 0;
>
> failure:
> + freeFunc(&item);
> freeFunc(list);
>
> return -1;
ACK, looks fine
Daniel
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