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path: root/drivers/gpu/drm/drm_fops.c
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Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
-rw-r--r--drivers/gpu/drm/drm_fops.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 136c949307ba..4be8e09a32ef 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -262,10 +262,10 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
goto out_prime_destroy;
}
-
- /* if there is no current master make this fd it */
+ /* if there is no current master make this fd it, but do not create
+ * any master object for render clients */
mutex_lock(&dev->struct_mutex);
- if (!priv->minor->master) {
+ if (!priv->minor->master && !drm_is_render_client(priv)) {
/* create a new master */
priv->minor->master = drm_master_create(priv->minor);
if (!priv->minor->master) {
@@ -303,12 +303,11 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
goto out_close;
}
}
- mutex_unlock(&dev->struct_mutex);
- } else {
+ } else if (!drm_is_render_client(priv)) {
/* get a reference to the master */
priv->master = drm_master_get(priv->minor->master);
- mutex_unlock(&dev->struct_mutex);
}
+ mutex_unlock(&dev->struct_mutex);
mutex_lock(&dev->struct_mutex);
list_add(&priv->lhead, &dev->filelist);
@@ -478,7 +477,8 @@ int drm_release(struct inode *inode, struct file *filp)
iput(container_of(dev->dev_mapping, struct inode, i_data));
/* drop the reference held my the file priv */
- drm_master_put(&file_priv->master);
+ if (file_priv->master)
+ drm_master_put(&file_priv->master);
file_priv->is_master = 0;
list_del(&file_priv->lhead);
mutex_unlock(&dev->struct_mutex);