drm/fb-helper: Propagate errors from initial config failure

Make drm_fb_helper_initial_config() return an int rather than a bool so
that the error can be properly propagated. While at it, update drivers
to propagate errors further rather than just ignore them.

v2:
- cirrus: No cleanup is required, the top-level cirrus_driver_load()
  will do it as part of cirrus_driver_unload() in its cleanup path.
  Reported-by: Fengguang Wu <[email protected]>

Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Patrik Jakobsson <[email protected]>
Cc: Rob Clark <[email protected]>
Cc: Tomi Valkeinen <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Christian König <[email protected]>
Cc: Ben Skeggs <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Reviewed-by: Patrik Jakobsson <[email protected]>
Reviewed-by: Christian König <[email protected]>
[danvet: Squash in simplification patch from kbuild.]
Signed-off-by: Daniel Vetter <[email protected]>

0 files changed, 0 insertions, 0 deletions