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drm/omap: Don't dereference list head when the connectors list is empty

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The connectors list iterator returns the list head when the list is
empty. Fix it by returning NULL in that case.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Laurent Pinchart 2013-12-24 12:58:01 +01:00 committed by Rob Clark
parent 30b6f8f679
commit 06fb220b2d
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/omapdrm/omap_fb.c
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@ -306,7 +306,8 @@ struct drm_connector *omap_framebuffer_get_next_connector(
struct drm_connector *connector = from;
if (!from)
return list_first_entry(connector_list, typeof(*from), head);
return list_first_entry_or_null(connector_list, typeof(*from),
head);
list_for_each_entry_from(connector, connector_list, head) {
if (connector != from) {