Merge commit '900cfa46191a7d87cf1891924cb90499287fd235'; branches 'timers/nohz',...

[cascardo/linux.git] / drivers / char / drm / drm_auth.c

diff --git a/drivers/char/drm/drm_auth.c b/drivers/char/drm/drm_auth.c
index 7f777da..a734627 100644 (file)
--- a/drivers/char/drm/drm_auth.c
+++ b/drivers/char/drm/drm_auth.c
@@ -128,42 +128,38 @@ static int drm_remove_magic(struct drm_device * dev, drm_magic_t magic)
  * Get a unique magic number (ioctl).
  *
  * \param inode device inode.
- * \param filp file pointer.
+ * \param file_priv DRM file private.
  * \param cmd command.
  * \param arg pointer to a resulting drm_auth structure.
  * \return zero on success, or a negative number on failure.
  *
  * If there is a magic number in drm_file::magic then use it, otherwise
  * searches an unique non-zero magic number and add it associating it with \p
- * filp.
+ * file_priv.
  */
-int drm_getmagic(struct inode *inode, struct file *filp,
-                unsigned int cmd, unsigned long arg)
+int drm_getmagic(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
        static drm_magic_t sequence = 0;
        static DEFINE_SPINLOCK(lock);
-       struct drm_file *priv = filp->private_data;
-       struct drm_device *dev = priv->head->dev;
-       struct drm_auth auth;
+       struct drm_auth *auth = data;
 
        /* Find unique magic */
-       if (priv->magic) {
-               auth.magic = priv->magic;
+       if (file_priv->magic) {
+               auth->magic = file_priv->magic;
        } else {
                do {
                        spin_lock(&lock);
                        if (!sequence)
                                ++sequence;     /* reserve 0 */
-                       auth.magic = sequence++;
+                       auth->magic = sequence++;
                        spin_unlock(&lock);
-               } while (drm_find_file(dev, auth.magic));
-               priv->magic = auth.magic;
-               drm_add_magic(dev, priv, auth.magic);
+               } while (drm_find_file(dev, auth->magic));
+               file_priv->magic = auth->magic;
+               drm_add_magic(dev, file_priv, auth->magic);
        }
 
-       DRM_DEBUG("%u\n", auth.magic);
-       if (copy_to_user((struct drm_auth __user *) arg, &auth, sizeof(auth)))
-               return -EFAULT;
+       DRM_DEBUG("%u\n", auth->magic);
+
        return 0;
 }
 
@@ -171,27 +167,23 @@ int drm_getmagic(struct inode *inode, struct file *filp,
  * Authenticate with a magic.
  *
  * \param inode device inode.
- * \param filp file pointer.
+ * \param file_priv DRM file private.
  * \param cmd command.
  * \param arg pointer to a drm_auth structure.
  * \return zero if authentication successed, or a negative number otherwise.
  *
- * Checks if \p filp is associated with the magic number passed in \arg.
+ * Checks if \p file_priv is associated with the magic number passed in \arg.
  */
-int drm_authmagic(struct inode *inode, struct file *filp,
-                 unsigned int cmd, unsigned long arg)
+int drm_authmagic(struct drm_device *dev, void *data,
+                 struct drm_file *file_priv)
 {
-       struct drm_file *priv = filp->private_data;
-       struct drm_device *dev = priv->head->dev;
-       struct drm_auth auth;
+       struct drm_auth *auth = data;
        struct drm_file *file;
 
-       if (copy_from_user(&auth, (struct drm_auth __user *) arg, sizeof(auth)))
-               return -EFAULT;
-       DRM_DEBUG("%u\n", auth.magic);
-       if ((file = drm_find_file(dev, auth.magic))) {
+       DRM_DEBUG("%u\n", auth->magic);
+       if ((file = drm_find_file(dev, auth->magic))) {
                file->authenticated = 1;
-               drm_remove_magic(dev, auth.magic);
+               drm_remove_magic(dev, auth->magic);
                return 0;
        }
        return -EINVAL;