diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-17 07:33:20 (GMT) |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-20 20:02:01 (GMT) |
commit | a77316bf24f4a86482397707997ff7c951caca56 (patch) | |
tree | 5d2bc3b37cf022cddd7d9abe9f43cd9a8fb85770 /drivers | |
parent | 0de4cc99c66d2a46e92cd201f7939121d9a1bb23 (diff) | |
download | linux-a77316bf24f4a86482397707997ff7c951caca56.tar.xz |
drm: Move authmagic cleanup into drm_master_release
It's related, and soon authmagic will also use the master_mutex.
There is an ever-so-slightly semantic change here:
- authmagic will only be cleaned up for primary_client drm_minors. But
it's impossible to create authmagic on render/control nodes, so this
is fine.
- The cleanup is moved down a bit in the release processing. Doesn't
matter at all since authmagic is purely internal logic used by the
core ioctl access checks, and when we're in a file's release
callback no one can do ioctls any more.
v2: Rebased.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466148814-8194-3-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/drm_auth.c | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_fops.c | 5 |
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c index 54ad64a..24f0f2d 100644 --- a/drivers/gpu/drm/drm_auth.c +++ b/drivers/gpu/drm/drm_auth.c @@ -248,6 +248,11 @@ void drm_master_release(struct drm_file *file_priv) struct drm_device *dev = file_priv->minor->dev; struct drm_master *master = file_priv->master; + mutex_lock(&dev->struct_mutex); + if (file_priv->magic) + idr_remove(&file_priv->master->magic_map, file_priv->magic); + mutex_unlock(&dev->struct_mutex); + mutex_lock(&dev->master_mutex); if (!file_priv->is_master) goto out; diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index f3b2677..f6dfdfc 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -376,11 +376,6 @@ int drm_release(struct inode *inode, struct file *filp) list_del(&file_priv->lhead); mutex_unlock(&dev->filelist_mutex); - mutex_lock(&dev->struct_mutex); - if (file_priv->magic) - idr_remove(&file_priv->master->magic_map, file_priv->magic); - mutex_unlock(&dev->struct_mutex); - if (dev->driver->preclose) dev->driver->preclose(dev, file_priv); |