diff options
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c index a348fec2213..e1b3cf539b4 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c @@ -150,6 +150,15 @@ static int vmw_ldu_add_active(struct vmw_private *vmw_priv, struct vmw_legacy_display_unit *entry; struct list_head *at; + BUG_ON(!ld->num_active && ld->fb); + if (vfb != ld->fb) { + if (ld->fb && ld->fb->unpin) + ld->fb->unpin(ld->fb); + if (vfb->pin) + vfb->pin(vfb); + ld->fb = vfb; + } + if (!list_empty(&ldu->active)) return 0; @@ -162,12 +171,8 @@ static int vmw_ldu_add_active(struct vmw_private *vmw_priv, } list_add(&ldu->active, at); - if (ld->num_active++ == 0) { - BUG_ON(ld->fb); - if (vfb->pin) - vfb->pin(vfb); - ld->fb = vfb; - } + + ld->num_active++; return 0; } |