drm/nouveau: allocate structure to store per-client data

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index a0e17340e145..9aa96b9375ae 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -764,6 +764,20 @@ static void nouveau_card_takedown(struct drm_device *dev)
         vga_client_register(dev->pdev, NULL, NULL, NULL);
 }
 
+int
+nouveau_open(struct drm_device *dev, struct drm_file *file_priv)
+{
+        struct nouveau_fpriv *fpriv;
+
+        fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
+        if (unlikely(!fpriv))
+                return -ENOMEM;
+
+        spin_lock_init(&fpriv->lock);
+        file_priv->driver_priv = fpriv;
+        return 0;
+}
+
 /* here a client dies, release the stuff that was allocated for its
  * file_priv */
 void nouveau_preclose(struct drm_device *dev, struct drm_file *file_priv)
@@ -771,6 +785,13 @@ void nouveau_preclose(struct drm_device *dev, struct drm_file *file_priv)
         nouveau_channel_cleanup(dev, file_priv);
 }
 
+void
+nouveau_postclose(struct drm_device *dev, struct drm_file *file_priv)
+{
+        struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
+        kfree(fpriv);
+}
+
 /* first module load, setup the mmio/fb mapping */
 /* KMS: we need mmio at load time, not when the first drm client opens. */
 int nouveau_firstopen(struct drm_device *dev)