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 --- drivers/gpu/drm/drm_gem.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 1ce88c3..4a23f34 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -296,7 +296,8 @@ 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);

if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, filp); @@ -699,7 +700,8 @@ 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);

if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, file_priv);