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drm: Move authmagic cleanup into drm_master_release

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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
This commit is contained in:
Daniel Vetter 2016-06-17 09:33:20 +02:00
parent 0de4cc99c6
commit a77316bf24
2 changed files with 5 additions and 5 deletions
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5
drivers/gpu/drm/drm_auth.c
View File

@ -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;

5
drivers/gpu/drm/drm_fops.c
View File

@ -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);