From 6d3e7fddb39a4f0a47c8042df11554bb61d7a4aa Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 4 May 2016 14:10:44 +0200 Subject: [PATCH] drm: Fixup locking WARN_ON mistake around gem_object_free_unlocked Embarrassingly while fixing up the old paths for i915 I managed to misplace a locking check for the new _unlocked paths. That's what I get for not retesting on radeon. Fixes: 9f0ba539d13a ("drm/gem: support BO freeing without dev->struct_mutex") Cc: Chris Wilson Cc: Alex Deucher Cc: Lucas Stach Tested-by: Chris Wilson Reviewed-by: Alex Deucher Signed-off-by: Daniel Vetter --- drivers/gpu/drm/drm_gem.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 973eb8805ce0..f716308fb48c 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -804,12 +804,13 @@ drm_gem_object_free(struct kref *kref) container_of(kref, struct drm_gem_object, refcount); struct drm_device *dev = obj->dev; - WARN_ON(!mutex_is_locked(&dev->struct_mutex)); - - if (dev->driver->gem_free_object_unlocked) + if (dev->driver->gem_free_object_unlocked) { dev->driver->gem_free_object_unlocked(obj); - else if (dev->driver->gem_free_object) + } else if (dev->driver->gem_free_object) { + WARN_ON(!mutex_is_locked(&dev->struct_mutex)); + dev->driver->gem_free_object(obj); + } } EXPORT_SYMBOL(drm_gem_object_free); -- 2.20.1