tomoyo_write_control(): get rid of pointless access_ok()

address is passed only to get_user()

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

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 1b46738..f93f8ac 100644 (file)
--- 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;