diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index b949102ad864..9ca818fb034c 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -553,12 +553,15 @@ static int vmw_stdu_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 (!turning_off && stdu->base.is_implicit && dev_priv->implicit_fb && !(dev_priv->num_implicit == 1 && stdu->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 = &stdu->base.connector; |