On 29/11/2019 13:59, Boris Brezillon wrote:
> We should release the reference we grabbed when an error occurs.
>
> Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations")
> Cc: <[email protected]>
> Signed-off-by: Boris Brezillon <[email protected]>
Reviewed-by: Steven Price <[email protected]>
> ---
> drivers/gpu/drm/panfrost/panfrost_drv.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c
> b/drivers/gpu/drm/panfrost/panfrost_drv.c
> index efc0a24d1f4c..2630c5027c63 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
> @@ -303,14 +303,17 @@ static int panfrost_ioctl_mmap_bo(struct drm_device
> *dev, void *data,
> }
>
> /* Don't allow mmapping of heap objects as pages are not pinned. */
> - if (to_panfrost_bo(gem_obj)->is_heap)
> - return -EINVAL;
> + if (to_panfrost_bo(gem_obj)->is_heap) {
> + ret = -EINVAL;
> + goto out;
> + }
>
> ret = drm_gem_create_mmap_offset(gem_obj);
> if (ret == 0)
> args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node);
> - drm_gem_object_put_unlocked(gem_obj);
>
> +out:
> + drm_gem_object_put_unlocked(gem_obj);
> return ret;
> }
>
>
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