From 60a16a30d97e8acc9bfed5f4bd1dd03e21a479ea Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Mon, 17 Oct 2011 11:59:43 +0200 Subject: [PATCH] vmwgfx: Fix display system init & close functions Make sure we null the display private, make sure we catch and handle vblank failing to init and don't call vblank_cleanup if we haven't initialized the display system. Signed-off-by: Jakob Bornecrantz Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 30 ++++++++++++++++++++-------- drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 +++- 2 files changed, 25 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c index 7fc8e7de180b..a8830d730dc1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c @@ -380,18 +380,31 @@ int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv) dev_priv->ldu_priv->last_num_active = 0; dev_priv->ldu_priv->fb = NULL; - drm_mode_create_dirty_info_property(dev_priv->dev); + /* for old hardware without multimon only enable one display */ + if (dev_priv->capabilities & SVGA_CAP_MULTIMON) + ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); + else + ret = drm_vblank_init(dev, 1); + if (ret != 0) + goto err_free; - if (dev_priv->capabilities & SVGA_CAP_MULTIMON) { + ret = drm_mode_create_dirty_info_property(dev); + if (ret != 0) + goto err_vblank_cleanup; + + if (dev_priv->capabilities & SVGA_CAP_MULTIMON) for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) vmw_ldu_init(dev_priv, i); - ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); - } else { - /* for old hardware without multimon only enable one display */ + else vmw_ldu_init(dev_priv, 0); - ret = drm_vblank_init(dev, 1); - } + return 0; + +err_vblank_cleanup: + drm_vblank_cleanup(dev); +err_free: + kfree(dev_priv->ldu_priv); + dev_priv->ldu_priv = NULL; return ret; } @@ -399,10 +412,11 @@ int vmw_kms_close_legacy_display_system(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; - drm_vblank_cleanup(dev); if (!dev_priv->ldu_priv) return -ENOSYS; + drm_vblank_cleanup(dev); + BUG_ON(!list_empty(&dev_priv->ldu_priv->active)); kfree(dev_priv->ldu_priv); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c index 347e40699443..319516f4ace2 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c @@ -545,6 +545,7 @@ err_vblank_cleanup: drm_vblank_cleanup(dev); err_free: kfree(dev_priv->sou_priv); + dev_priv->sou_priv = NULL; err_no_mem: return ret; } @@ -553,10 +554,11 @@ int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; - drm_vblank_cleanup(dev); if (!dev_priv->sou_priv) return -ENOSYS; + drm_vblank_cleanup(dev); + if (!list_empty(&dev_priv->sou_priv->active)) DRM_ERROR("Still have active outputs when unloading driver"); -- 2.20.1