drm: move drm_put_minor() to drm_minor_free()

_put/get() are used for ref-counting, which we clearly don't do here.
Rename it to _free() and also use the common drm_minor_* prefix.
Furthermore, avoid passing the minor directly but instead use the type
like the other functions do, this allows us to reset the slot.

We also drop the redundant call to drm_unplug_minor() as drm_minor_free()
is only used from paths were that has already be called.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 18 insertions, 27 deletions

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index b595b64291a2..e46c0904a706 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -291,6 +291,17 @@ static int drm_minor_alloc(struct drm_device *dev, unsigned int type)
         return 0;
 }
 
+static void drm_minor_free(struct drm_device *dev, unsigned int type)
+{
+        struct drm_minor **slot;
+
+        slot = drm_minor_get_slot(dev, type);
+        if (*slot) {
+                kfree(*slot);
+                *slot = NULL;
+        }
+}
+
 /**
  * drm_get_minor - Register DRM minor
  * @dev: DRM device
@@ -414,26 +425,6 @@ void drm_minor_release(struct drm_minor *minor)
 }
 
 /**
- * drm_put_minor - Destroy DRM minor
- * @minor: Minor to destroy
- *
- * This calls drm_unplug_minor() on the given minor and then frees it. Nothing
- * is done if @minor is NULL. It is fine to call this on already unplugged
- * minors.
- * The global DRM mutex must be held by the caller.
- */
-static void drm_put_minor(struct drm_minor *minor)
-{
-        if (!minor)
-                return;
-
-        DRM_DEBUG("release secondary minor %d\n", minor->index);
-
-        drm_unplug_minor(minor);
-        kfree(minor);
-}
-
-/**
  * Called via drm_exit() at module unload time or when pci device is
  * unplugged.
  *
@@ -554,9 +545,9 @@ err_ctxbitmap:
 err_ht:
         drm_ht_remove(&dev->map_hash);
 err_minors:
-        drm_put_minor(dev->control);
-        drm_put_minor(dev->render);
-        drm_put_minor(dev->primary);
+        drm_minor_free(dev, DRM_MINOR_LEGACY);
+        drm_minor_free(dev, DRM_MINOR_RENDER);
+        drm_minor_free(dev, DRM_MINOR_CONTROL);
         kfree(dev);
         return NULL;
 }
@@ -566,16 +557,16 @@ static void drm_dev_release(struct kref *ref)
 {
         struct drm_device *dev = container_of(ref, struct drm_device, ref);
 
-        drm_put_minor(dev->control);
-        drm_put_minor(dev->render);
-        drm_put_minor(dev->primary);
-
         if (dev->driver->driver_features & DRIVER_GEM)
                 drm_gem_destroy(dev);
 
         drm_ctxbitmap_cleanup(dev);
         drm_ht_remove(&dev->map_hash);
 
+        drm_minor_free(dev, DRM_MINOR_LEGACY);
+        drm_minor_free(dev, DRM_MINOR_RENDER);
+        drm_minor_free(dev, DRM_MINOR_CONTROL);
+
         kfree(dev->devname);
         kfree(dev);
 }