For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with
commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter daniel.vetter@ffwll.ch Date: Thu Oct 15 09:36:25 2015 +0200
drm/gem: Check locking in drm_gem_object_unreference
Cc: Ben Skeggs bskeggs@redhat.com Signed-off-by: Daniel Vetter daniel.vetter@intel.com --- drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 7ce7fa5cb5e6..816342645f42 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -296,7 +296,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev, err: kfree(nouveau_fb); err_unref: - drm_gem_object_unreference(gem); + drm_gem_object_unreference_unlocked(gem); return ERR_PTR(ret); }