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drm/nouveau/disp: fix oops in destructor with headless cards

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If init doesn't run then disp->outp might not be initialized, resulting
in an oops.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Maarten Lankhorst 2014-06-17 15:01:48 +02:00 committed by Ben Skeggs
parent 82c2b5ed6f
commit 242a42eadf
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/nouveau/core/engine/disp/base.c
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@ -99,8 +99,10 @@ _nouveau_disp_dtor(struct nouveau_object *object)
nouveau_event_destroy(&disp->vblank);
list_for_each_entry_safe(outp, outt, &disp->outp, head) {
nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
if (disp->outp.next) {
list_for_each_entry_safe(outp, outt, &disp->outp, head) {
nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
}
}
nouveau_engine_destroy(&disp->base);