The idr is protected with our spinlock, if we don't hold that nothing prevents the gem objects from disappearing from under us.
Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/drm_info.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c index d4b20ce..9f8fc4c 100644 --- a/drivers/gpu/drm/drm_info.c +++ b/drivers/gpu/drm/drm_info.c @@ -218,7 +218,11 @@ int drm_gem_name_info(struct seq_file *m, void *data) struct drm_device *dev = node->minor->dev;
seq_printf(m, " name size handles refcount\n"); + + spin_lock(&dev->object_name_lock); idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m); + spin_unlock(&dev->object_name_lock); + return 0; }