diff options
Diffstat (limited to 'drivers/gpu/drm/drm_stub.c')
| -rw-r--r-- | drivers/gpu/drm/drm_stub.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index adb864dfef3..ad73e141afd 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -128,6 +128,7 @@ struct drm_master *drm_master_get(struct drm_master *master) kref_get(&master->refcount); return master; } +EXPORT_SYMBOL(drm_master_get); static void drm_master_destroy(struct kref *kref) { @@ -170,10 +171,13 @@ void drm_master_put(struct drm_master **master) kref_put(&(*master)->refcount, drm_master_destroy); *master = NULL; } +EXPORT_SYMBOL(drm_master_put); int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { + int ret = 0; + if (file_priv->is_master) return 0; @@ -188,6 +192,13 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, mutex_lock(&dev->struct_mutex); file_priv->minor->master = drm_master_get(file_priv->master); file_priv->is_master = 1; + if (dev->driver->master_set) { + ret = dev->driver->master_set(dev, file_priv, false); + if (unlikely(ret != 0)) { + file_priv->is_master = 0; + drm_master_put(&file_priv->minor->master); + } + } mutex_unlock(&dev->struct_mutex); } @@ -204,6 +215,8 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data, return -EINVAL; mutex_lock(&dev->struct_mutex); + if (dev->driver->master_drop) + dev->driver->master_drop(dev, file_priv, false); drm_master_put(&file_priv->minor->master); file_priv->is_master = 0; mutex_unlock(&dev->struct_mutex); |