diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c index 0ea22fd112c9..b74eae2b8594 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c @@ -285,14 +285,17 @@ static int vmw_sou_crtc_set_config(struct drm_mode_set *set) } /* Only one active implicit frame-buffer at a time. */ + mutex_lock(&dev_priv->global_kms_state_mutex); if (sou->base.is_implicit && dev_priv->implicit_fb && vfb && !(dev_priv->num_implicit == 1 && sou->base.active_implicit) && dev_priv->implicit_fb != vfb) { + mutex_unlock(&dev_priv->global_kms_state_mutex); DRM_ERROR("Multiple implicit framebuffers not supported.\n"); return -EINVAL; } + mutex_unlock(&dev_priv->global_kms_state_mutex); /* since they always map one to one these are safe */ connector = &sou->base.connector; |