Merge tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel...

[cascardo/linux.git] / drivers / gpu / drm / drm_lock.c

diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index f861361..4924d38 100644 (file)
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -61,6 +61,9 @@ int drm_legacy_lock(struct drm_device *dev, void *data,
        struct drm_master *master = file_priv->master;
        int ret = 0;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        ++file_priv->lock_count;
 
        if (lock->context == DRM_KERNEL_CONTEXT) {
@@ -153,6 +156,9 @@ int drm_legacy_unlock(struct drm_device *dev, void *data, struct drm_file *file_
        struct drm_lock *lock = data;
        struct drm_master *master = file_priv->master;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        if (lock->context == DRM_KERNEL_CONTEXT) {
                DRM_ERROR("Process %d using kernel context %d\n",
                          task_pid_nr(current), lock->context);