From 997b37da1515c1620692521786a74af271664eb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= <rdenis@simphalempin.com>
Date: Fri, 15 Feb 2008 02:35:45 -0800
Subject: [PATCH] [NET]: Make sure sockets implement splice_read
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Fixes a segmentation fault when trying to splice from a non-TCP socket.
Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/socket.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/socket.c b/net/socket.c
index 7651de00850..b6d35cd72a5 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -701,6 +701,9 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
{
struct socket *sock = file->private_data;
+ if (unlikely(!sock->ops->splice_read))
+ return -EINVAL;
+
return sock->ops->splice_read(sock, ppos, pipe, len, flags);
}
--
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