Ever since framebuffers are reference counted we have a special lock for the global fb list. Make sure users of that list do hold that lock when using the new iterators.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com --- include/drm/drm_crtc.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index a912ba06cf45..3646c47b43de 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1602,6 +1602,10 @@ static inline struct drm_property *drm_property_find(struct drm_device *dev, encoder = list_next_entry(encoder, head))
#define drm_for_each_fb(fb, dev) \ - list_for_each_entry(fb, &(dev)->mode_config.fb_list, head) + for (WARN_ON(!mutex_is_locked(&(dev)->mode_config.fb_lock)), \ + fb = list_first_entry(&(dev)->mode_config.fb_list, \ + struct drm_framebuffer, head); \ + &fb->head != (&(dev)->mode_config.fb_list); \ + fb = list_next_entry(fb, head))
#endif /* __DRM_CRTC_H__ */