Hi Daniel,
FYI, here is a potential problem on memory allocation failure, caught by coccinelle:
+ drivers/gpu/drm/drm_fb_helper.c:1247:1-8: alloc with no test, possible model on line 1252
vim +1247 drivers/gpu/drm/drm_fb_helper.c
1244 sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
1245 modes = kcalloc(dev->mode_config.num_connector,
1246 sizeof(struct drm_display_mode *), GFP_KERNEL);
1247 enabled = kcalloc(dev->mode_config.num_connector,
1248 sizeof(bool), GFP_KERNEL);
1249
1250 drm_enable_connectors(fb_helper, enabled);
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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu [off-list ref] Intel Corporation