Most drivers don't appear to bother with checking drm_connector_sysfs_add() return value. That means the recent changes to drm_connector_sysfs_add() have left most drivers susceptible to oopsing on cleanup if drm_connector_sysfs_add() somehow failed.
This series makes drm_connector_sysfs_remove() safe to call even if drm_connector_sysfs_add() failed. I also went a bit further and changed i915 to check the drm_connector_sysfs_add() return value. Not sure if we really want that patch now that the danger of oopsing is eliminated...
Ville Syrjälä (3): drm/sysfs: Remove stale comments about calling drm_sysfs_connector_add() multiple times drm/sysfs: Don't pollute connector->kdev if drm_connector_sysfs_add() fails drm/i915: Clean up if drm_sysfs_connector_add() fails
drivers/gpu/drm/drm_sysfs.c | 49 ++++++++++++++++++++------------------- drivers/gpu/drm/i915/intel_crt.c | 10 +++++++- drivers/gpu/drm/i915/intel_ddi.c | 5 +++- drivers/gpu/drm/i915/intel_dp.c | 6 ++++- drivers/gpu/drm/i915/intel_drv.h | 2 +- drivers/gpu/drm/i915/intel_dsi.c | 9 ++++++- drivers/gpu/drm/i915/intel_dvo.c | 8 ++++++- drivers/gpu/drm/i915/intel_hdmi.c | 16 ++++++++++--- drivers/gpu/drm/i915/intel_lvds.c | 7 +++++- drivers/gpu/drm/i915/intel_sdvo.c | 36 ++++++++++++++++++++++------ drivers/gpu/drm/i915/intel_tv.c | 10 +++++++- 11 files changed, 116 insertions(+), 42 deletions(-)