From: andrew hendry <andrew.hendry@gmail.com>
Date: Tue, 14 Sep 2010 13:31:38 +0000 (+0000)
Subject: X.25 remove bkl in bind
X-Git-Tag: firefly_0821_release~7613^2~3670^2~454
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=90c27297a9bfb8ea11c0e3f73ad90c4c66e8501e;p=firefly-linux-kernel-4.4.55.git

X.25 remove bkl in bind

Accept updates socket values in 3 lines so wrapped with lock_sock.

Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index f6a8f175b4f5..bd6fce31a738 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -688,7 +688,6 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	struct sockaddr_x25 *addr = (struct sockaddr_x25 *)uaddr;
 	int len, i, rc = 0;
 
-	lock_kernel();
 	if (!sock_flag(sk, SOCK_ZAPPED) ||
 	    addr_len != sizeof(struct sockaddr_x25) ||
 	    addr->sx25_family != AF_X25) {
@@ -704,12 +703,13 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 		}
 	}
 
+	lock_sock(sk);
 	x25_sk(sk)->source_addr = addr->sx25_addr;
 	x25_insert_socket(sk);
 	sock_reset_flag(sk, SOCK_ZAPPED);
+	release_sock(sk);
 	SOCK_DEBUG(sk, "x25_bind: socket is bound\n");
 out:
-	unlock_kernel();
 	return rc;
 }