openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/vmwgfx: Fix query buffer locking order violation 

The query buffers were reserved while holding the binding mutex, which
caused a circular locking dependency.

Cc: stable@vger.kernel.org
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Thomas Hellstrom 2014-03-31 10:20:30 +02:00
parent 2844ea3f25
commit c8e5e010ef
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/vmwgfx/vmwgfx_context.c
View File

@ -117,10 +117,10 @@ static void vmw_hw_context_destroy(struct vmw_resource *res)
(void) vmw_context_binding_state_kill
(&container_of(res, struct vmw_user_context, res)->cbs);
(void) vmw_gb_context_destroy(res);
mutex_unlock(&dev_priv->binding_mutex);
if (dev_priv->pinned_bo != NULL &&
!dev_priv->query_cid_valid)
__vmw_execbuf_release_pinned_bo(dev_priv, NULL);
mutex_unlock(&dev_priv->binding_mutex);
mutex_unlock(&dev_priv->cmdbuf_mutex);
return;
}