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drm/prime: Remove PRIME handles only if supported 

Drivers that don't support PRIME will not have initialized the PRIME
specific private component of struct drm_file. If called for such
drivers, the drm_gem_remove_prime_handles() function will crash. Fix
it by checking for PRIME support prior to removing the PRIME handles.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
This commit is contained in:
Thierry Reding 2013-08-28 12:04:14 +02:00 committed by Dave Airlie
parent 807ac202f2
commit 9c78485506
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/drm_gem.c
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@ -297,7 +297,8 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
idr_remove(&filp->object_idr, handle);
spin_unlock(&filp->table_lock);
drm_gem_remove_prime_handles(obj, filp);
if (drm_core_check_feature(dev, DRIVER_PRIME))
drm_gem_remove_prime_handles(obj, filp);
drm_vma_node_revoke(&obj->vma_node, filp->filp);
if (dev->driver->gem_close_object)
@ -706,7 +707,8 @@ drm_gem_object_release_handle(int id, void *ptr, void *data)
struct drm_gem_object *obj = ptr;
struct drm_device *dev = obj->dev;
drm_gem_remove_prime_handles(obj, file_priv);
if (drm_core_check_feature(dev, DRIVER_PRIME))
drm_gem_remove_prime_handles(obj, file_priv);
drm_vma_node_revoke(&obj->vma_node, file_priv->filp);
if (dev->driver->gem_close_object)