Re: [Qemu-devel] [PATCH] qga-win: fix leaks of build_guest_disk_info()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 3/11/18 14:01, Marc-André Lureau wrote:
> Introduced in commit b1ba8890e63ce9432c41c5c3fc229f54c87c9c99, vol_h
> handle should be closed, and "out" cleanup should be done after
> DeviceIoControl() fails.
> 
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>   qga/commands-win32.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/qga/commands-win32.c b/qga/commands-win32.c
> index ef1d7d48d2..62e1b51dfe 100644
> --- a/qga/commands-win32.c
> +++ b/qga/commands-win32.c
> @@ -797,7 +797,7 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
>                       0, extents, size, NULL, NULL)) {
>                   error_setg_win32(errp, GetLastError(),
>                       "failed to get disk extents");
> -                return NULL;
> +                goto out;
>               }
>           } else if (last_err == ERROR_INVALID_FUNCTION) {
>               /* Possibly CD-ROM or a shared drive. Try to pass the volume */
> @@ -855,6 +855,9 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
>   
>   
>   out:
> +    if (vol_h != INVALID_HANDLE_VALUE) {
> +        CloseHandle(vol_h);
> +    }
>       qapi_free_GuestDiskAddress(disk);
>       g_free(extents);
>       g_free(name);
>