[PATCH 3/3] msm: Do not BUG_ON(!spin_is_locked()) on UP

[Bruno Prémont]

On !SMP systems spinlocks do not exist. Thus checking of they
are active will always fail.

Use
  assert_spin_locked(lock);
instead of
  BUG_ON(!spin_is_locked(lock));
to not BUG() on all UP systems.

Signed-off-by: Bruno Prémont <bonbons at linux-vserver.org>
---
 drivers/gpu/drm/msm/mdp/mdp_kms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/mdp/mdp_kms.c 
b/drivers/gpu/drm/msm/mdp/mdp_kms.c
index 03455b6..f5e2173 100644
--- a/drivers/gpu/drm/msm/mdp/mdp_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp_kms.c
@@ -34,7 +34,7 @@ static void update_irq(struct mdp_kms *mdp_kms)
        struct mdp_irq *irq;
        uint32_t irqmask = mdp_kms->vblank_mask;

-       BUG_ON(!spin_is_locked(&list_lock));
+       assert_spin_locked(&list_lock));

        list_for_each_entry(irq, &mdp_kms->irq_list, node)
                irqmask |= irq->irqmask;
-- 
1.8.1.5