[patch] vmwgfx: memory leaks caused by double allocation

Thomas Hellstrom thellstrom at vmware.com
Mon Oct 17 23:37:53 PDT 2011


On 10/18/2011 08:09 AM, Dan Carpenter wrote:
> These variables get allocated twice so the first allocation is a
> memory leak.
>
> Signed-off-by: Dan Carpenter<dan.carpenter at oracle.com>
>    

Reviewed-by: Thomas Hellstrom <thellstrom at vmware.com>


> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
> index c7cff3d..86c5e4c 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
> @@ -1255,8 +1255,7 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
>   			     struct drm_file *file_priv)
>   {
>   	struct vmw_private *dev_priv = vmw_priv(dev);
> -	struct vmw_user_surface *user_srf =
> -	    kmalloc(sizeof(*user_srf), GFP_KERNEL);
> +	struct vmw_user_surface *user_srf;
>   	struct vmw_surface *srf;
>   	struct vmw_resource *res;
>   	struct vmw_resource *tmp;
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
> index 35d5f61..15fb260 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
> @@ -953,8 +953,7 @@ int vmw_event_fence_action_create(struct drm_file *file_priv,
>   				  uint32_t *tv_usec,
>   				  bool interruptible)
>   {
> -	struct vmw_event_fence_action *eaction =
> -		kzalloc(sizeof(*eaction), GFP_KERNEL);
> +	struct vmw_event_fence_action *eaction;
>   	struct ttm_mem_global *mem_glob =
>   		vmw_mem_glob(fence->fman->dev_priv);
>   	struct vmw_fence_manager *fman = fence->fman;
>    



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