Messages in this thread Patch in this message | | | From | Al Viro <> | Subject | [PATCH 15/20] drm_read(): get rid of pointless access_ok() | Date | Sun, 10 May 2020 00:45:52 +0100 |
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From: Al Viro <viro@zeniv.linux.org.uk>
address is passed only to copy_to_user()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- drivers/gpu/drm/drm_file.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index eb009d3ab48f..6a1f6c802415 100644 --- 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; -- 2.11.0
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