[PATCH 05/20] tomoyo_write_control(): get rid of pointless access_ok()

[Al Viro <viro@xxxxxxxxxxxxxxxxxx>]

From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

address is passed only to get_user()

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
 security/tomoyo/common.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 1b467381986f..f93f8acd05f7 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -2662,8 +2662,6 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
 
 	if (!head->write)
 		return -EINVAL;
-	if (!access_ok(buffer, buffer_len))
-		return -EFAULT;
 	if (mutex_lock_interruptible(&head->io_sem))
 		return -EINTR;
 	head->read_user_buf_avail = 0;
-- 
2.11.0