[libvirt] [PATCH 2/4] parallels: fix memory allocation

[Daniel P. Berrange]

On Wed, Sep 26, 2012 at 04:30:00PM +0400, Dmitry Guryanov wrote:
> size of videos array must be increased.
> 
> Signed-off-by: Dmitry Guryanov <dguryanov at parallels.com>
> ---
>  src/parallels/parallels_driver.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/src/parallels/parallels_driver.c b/src/parallels/parallels_driver.c
> index 20ee361..87e8cf5 100644
> --- a/src/parallels/parallels_driver.c
> +++ b/src/parallels/parallels_driver.c
> @@ -277,7 +277,7 @@ parallelsAddVideoInfo(virDomainDefPtr def, virJSONValuePtr value)
>      if (VIR_ALLOC(accel) < 0)
>          goto no_memory;
>  
> -    if (VIR_REALLOC_N(def->videos, def->nvideos) < 0)
> +    if (VIR_REALLOC_N(def->videos, def->nvideos + 1) < 0)
>          goto no_memory;
>  
>      def->videos[def->nvideos++] = video;

It is actually preferrable to use VIR_EXPAND_N here, eg

     if (VIR_EXPAND_N(def->videos, def->nvideos, 1) < 0)
         goto no_memory;

     def->videos[def->nvideos - 1] = video;

NB VIR_EXPAND_N actually changes the 'nvideos' param for you

Daniel
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