lkml.org 
[lkml]   [2020]   [May]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 15/20] drm_read(): get rid of pointless access_ok()
Date
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
\
 
 \ /
  Last update: 2020-05-10 01:49    [W:0.176 / U:0.220 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site