drm: Convert all helpers to drm_connector_list_iter
Mostly nothing special (except making sure that really all error paths and friends call iter_put). v2: Don't forget the raw connector_list walking in drm_helper_move_panel_connectors_to_head. That one unfortunately can't be converted to the iterator helpers, but since it's just some list splicing best to just wrap the entire thing up in one critical section. v3: Bail out after iter_put (Harry). Cc: Harry Wentland <harry.wentland@amd.com> Reviewed-by:Harry Wentland <harry.wentland@amd.com> Reviewed-by:
Sean Paul <seanpaul@chromium.org> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161215155843.13408-1-daniel.vetter@ffwll.ch
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