drm_read(): get rid of pointless access_ok()

address is passed only to copy_to_user()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index eb009d3ab48fa318ddd51dae56784d288ccef17d..6a1f6c802415518319b1393c9d954a82f7af231e 100644 (file)
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -569,9 +569,6 @@ ssize_t drm_read(struct file *filp, char __user *buffer,
        struct drm_device *dev = file_priv->minor->dev;
        ssize_t ret;
 
-       if (!access_ok(buffer, count))
-               return -EFAULT;
-
        ret = mutex_lock_interruptible(&file_priv->event_read_lock);
        if (ret)
                return ret;