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drm: Check for a NULL encoder when reverting on error path

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We need to skip the connectors with a NULL encoder to match the success
path and avoid an OOPS.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Chris Wilson 2009-02-11 16:39:21 +00:00 committed by Dave Airlie
parent 85a7bb9858
commit e62fb64e61
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/drm_crtc_helper.c
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@ -775,8 +775,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
fail_set_mode:
set->crtc->enabled = save_enabled;
count = 0;
list_for_each_entry(connector, &dev->mode_config.connector_list, head)
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (!connector->encoder)
continue;
connector->encoder->crtc = save_crtcs[count++];
}
fail_no_encoder:
kfree(save_crtcs);
count = 0;