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Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index c9f9f3ded9e1..a7dc1e266c98 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1980,6 +1980,9 @@ int drm_mode_set_config_internal(struct drm_mode_set *set) ret = crtc->funcs->set_config(set); if (ret == 0) { + /* crtc->fb must be updated by ->set_config, enforces this. */ + WARN_ON(fb != crtc->fb); + if (old_fb) drm_framebuffer_unreference(old_fb); if (fb) |