From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 23 Apr 2020 14:19:04 +0000 (-0400)
Subject: batadv_socket_read(): get rid of pointless access_ok()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=38c53ca3c114fa2a7030f0d1f54feaf044957609;p=linux.git

batadv_socket_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/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index ccb535c77e5da..8bdabc03b0b23 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -135,9 +135,6 @@ static ssize_t batadv_socket_read(struct file *file, char __user *buf,
 	if (!buf || count < sizeof(struct batadv_icmp_packet))
 		return -EINVAL;
 
-	if (!access_ok(buf, count))
-		return -EFAULT;
-
 	error = wait_event_interruptible(socket_client->queue_wait,
 					 socket_client->queue_len);